Home / 144,143.68-216,215.52-45,640

Finding the Fourth Proportional to 144,143.68, 216,215.52 and 45,640

Calculator

Solution

The fourth proportional to 144,143.68, 216,215.52 and 45,640 is: 68,460

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,143.68 : 216,215.52 = 45,640 : x
  2. Step 2: Convert to fraction form
    144,143.68/216,215.52 = 45,640/x
  3. Step 3: Cross multiply
    144,143.68x = 216,215.52 × 45,640
  4. Step 4: Simplify right side
    144,143.68x = 9,868,076,332.80
  5. Step 5: Solve for x
    x = 9,868,076,332.80/144,143.68
  6. Step 6: Final answer
    x = 68,460

Related Problems

Find fourth proportional to 72,071.84, 108,107.76 and 22,820
Half scale
Find fourth proportional to 288,287.36, 432,431.04 and 91,280
Double scale
Find fourth proportional to 144,144.68, 216,217.02 and 45,641
Similar ratio
Find fourth proportional to 216,215.52, 324,323.28 and 68,460
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.