Home / 157,220.40-235,831.28-38,891.36

Finding the Fourth Proportional to 157,220.40, 235,831.28 and 38,891.36

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Solution

The fourth proportional to 157,220.40, 235,831.28 and 38,891.36 is: 58,337.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,220.40 : 235,831.28 = 38,891.36 : x
  2. Step 2: Convert to fraction form
    157,220.40/235,831.28 = 38,891.36/x
  3. Step 3: Cross multiply
    157,220.40x = 235,831.28 × 38,891.36
  4. Step 4: Simplify right side
    157,220.40x = 9,171,799,209.74
  5. Step 5: Solve for x
    x = 9,171,799,209.74/157,220.40
  6. Step 6: Final answer
    x = 58,337.21

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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.