Home / 103,034.92-142,186.26-57,712.36

Finding the Fourth Proportional to 103,034.92, 142,186.26 and 57,712.36

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Solution

The fourth proportional to 103,034.92, 142,186.26 and 57,712.36 is: 79,641.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,034.92 : 142,186.26 = 57,712.36 : x
  2. Step 2: Convert to fraction form
    103,034.92/142,186.26 = 57,712.36/x
  3. Step 3: Cross multiply
    103,034.92x = 142,186.26 × 57,712.36
  4. Step 4: Simplify right side
    103,034.92x = 8,205,904,624.17
  5. Step 5: Solve for x
    x = 8,205,904,624.17/103,034.92
  6. Step 6: Final answer
    x = 79,641.98

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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.