Home / 102,725.72-141,761.49-62,431.97

Finding the Fourth Proportional to 102,725.72, 141,761.49 and 62,431.97

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Solution

The fourth proportional to 102,725.72, 141,761.49 and 62,431.97 is: 86,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,725.72 : 141,761.49 = 62,431.97 : x
  2. Step 2: Convert to fraction form
    102,725.72/141,761.49 = 62,431.97/x
  3. Step 3: Cross multiply
    102,725.72x = 141,761.49 × 62,431.97
  4. Step 4: Simplify right side
    102,725.72x = 8,850,448,499.09
  5. Step 5: Solve for x
    x = 8,850,448,499.09/102,725.72
  6. Step 6: Final answer
    x = 86,156.11

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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.