Home / 115,064.98-158,757.59-74,211.82

Finding the Fourth Proportional to 115,064.98, 158,757.59 and 74,211.82

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Solution

The fourth proportional to 115,064.98, 158,757.59 and 74,211.82 is: 102,391.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,064.98 : 158,757.59 = 74,211.82 : x
  2. Step 2: Convert to fraction form
    115,064.98/158,757.59 = 74,211.82/x
  3. Step 3: Cross multiply
    115,064.98x = 158,757.59 × 74,211.82
  4. Step 4: Simplify right side
    115,064.98x = 11,781,689,063.91
  5. Step 5: Solve for x
    x = 11,781,689,063.91/115,064.98
  6. Step 6: Final answer
    x = 102,391.62

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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.