Home / 103,132.14-142,309.62-62,831.28

Finding the Fourth Proportional to 103,132.14, 142,309.62 and 62,831.28

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Solution

The fourth proportional to 103,132.14, 142,309.62 and 62,831.28 is: 86,699.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,132.14 : 142,309.62 = 62,831.28 : x
  2. Step 2: Convert to fraction form
    103,132.14/142,309.62 = 62,831.28/x
  3. Step 3: Cross multiply
    103,132.14x = 142,309.62 × 62,831.28
  4. Step 4: Simplify right side
    103,132.14x = 8,941,495,580.91
  5. Step 5: Solve for x
    x = 8,941,495,580.91/103,132.14
  6. Step 6: Final answer
    x = 86,699.41

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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.