Home / 102,640.38-141,638.31-57,925.50

Finding the Fourth Proportional to 102,640.38, 141,638.31 and 57,925.50

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Solution

The fourth proportional to 102,640.38, 141,638.31 and 57,925.50 is: 79,934.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,640.38 : 141,638.31 = 57,925.50 : x
  2. Step 2: Convert to fraction form
    102,640.38/141,638.31 = 57,925.50/x
  3. Step 3: Cross multiply
    102,640.38x = 141,638.31 × 57,925.50
  4. Step 4: Simplify right side
    102,640.38x = 8,204,469,925.91
  5. Step 5: Solve for x
    x = 8,204,469,925.91/102,640.38
  6. Step 6: Final answer
    x = 79,934.13

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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.