Home / 90,717.14-136,098.72-64,115.47

Finding the Fourth Proportional to 90,717.14, 136,098.72 and 64,115.47

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Solution

The fourth proportional to 90,717.14, 136,098.72 and 64,115.47 is: 96,189.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,717.14 : 136,098.72 = 64,115.47 : x
  2. Step 2: Convert to fraction form
    90,717.14/136,098.72 = 64,115.47/x
  3. Step 3: Cross multiply
    90,717.14x = 136,098.72 × 64,115.47
  4. Step 4: Simplify right side
    90,717.14x = 8,726,033,569.32
  5. Step 5: Solve for x
    x = 8,726,033,569.32/90,717.14
  6. Step 6: Final answer
    x = 96,189.47

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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.