Home / 123,065.96-169,831.80-72,108.80

Finding the Fourth Proportional to 123,065.96, 169,831.80 and 72,108.80

Calculator

Solution

The fourth proportional to 123,065.96, 169,831.80 and 72,108.80 is: 99,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,065.96 : 169,831.80 = 72,108.80 : x
  2. Step 2: Convert to fraction form
    123,065.96/169,831.80 = 72,108.80/x
  3. Step 3: Cross multiply
    123,065.96x = 169,831.80 × 72,108.80
  4. Step 4: Simplify right side
    123,065.96x = 12,246,367,299.84
  5. Step 5: Solve for x
    x = 12,246,367,299.84/123,065.96
  6. Step 6: Final answer
    x = 99,510.60

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.