Home / 102,906.52-142,006.17-57,590.26

Finding the Fourth Proportional to 102,906.52, 142,006.17 and 57,590.26

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Solution

The fourth proportional to 102,906.52, 142,006.17 and 57,590.26 is: 79,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,906.52 : 142,006.17 = 57,590.26 : x
  2. Step 2: Convert to fraction form
    102,906.52/142,006.17 = 57,590.26/x
  3. Step 3: Cross multiply
    102,906.52x = 142,006.17 × 57,590.26
  4. Step 4: Simplify right side
    102,906.52x = 8,178,172,251.90
  5. Step 5: Solve for x
    x = 8,178,172,251.90/102,906.52
  6. Step 6: Final answer
    x = 79,471.86

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1.5x scale

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.