Home / 99,375.17-149,125.59-90,034.02

Finding the Fourth Proportional to 99,375.17, 149,125.59 and 90,034.02

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Solution

The fourth proportional to 99,375.17, 149,125.59 and 90,034.02 is: 135,107.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,375.17 : 149,125.59 = 90,034.02 : x
  2. Step 2: Convert to fraction form
    99,375.17/149,125.59 = 90,034.02/x
  3. Step 3: Cross multiply
    99,375.17x = 149,125.59 × 90,034.02
  4. Step 4: Simplify right side
    99,375.17x = 13,426,376,352.57
  5. Step 5: Solve for x
    x = 13,426,376,352.57/99,375.17
  6. Step 6: Final answer
    x = 135,107.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.