Home / 102,640.32-141,654-62,358.12

Finding the Fourth Proportional to 102,640.32, 141,654 and 62,358.12

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Solution

The fourth proportional to 102,640.32, 141,654 and 62,358.12 is: 86,060.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,640.32 : 141,654 = 62,358.12 : x
  2. Step 2: Convert to fraction form
    102,640.32/141,654 = 62,358.12/x
  3. Step 3: Cross multiply
    102,640.32x = 141,654 × 62,358.12
  4. Step 4: Simplify right side
    102,640.32x = 8,833,277,130.48
  5. Step 5: Solve for x
    x = 8,833,277,130.48/102,640.32
  6. Step 6: Final answer
    x = 86,060.50

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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.