Home / 79,140.16-118,706-19,976.34

Finding the Fourth Proportional to 79,140.16, 118,706 and 19,976.34

Calculator

Solution

The fourth proportional to 79,140.16, 118,706 and 19,976.34 is: 29,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,140.16 : 118,706 = 19,976.34 : x
  2. Step 2: Convert to fraction form
    79,140.16/118,706 = 19,976.34/x
  3. Step 3: Cross multiply
    79,140.16x = 118,706 × 19,976.34
  4. Step 4: Simplify right side
    79,140.16x = 2,371,311,416.04
  5. Step 5: Solve for x
    x = 2,371,311,416.04/79,140.16
  6. Step 6: Final answer
    x = 29,963.44

Related Problems

Find fourth proportional to 39,570.08, 59,353 and 9,988.17
Half scale
Find fourth proportional to 158,280.32, 237,412 and 39,952.68
Double scale
Find fourth proportional to 79,141.16, 118,707.50 and 19,977.34
Similar ratio
Find fourth proportional to 118,710.24, 178,059 and 29,964.51
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.