Home / 131,488.65-181,453.91-74,909.61

Finding the Fourth Proportional to 131,488.65, 181,453.91 and 74,909.61

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Solution

The fourth proportional to 131,488.65, 181,453.91 and 74,909.61 is: 103,375.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,488.65 : 181,453.91 = 74,909.61 : x
  2. Step 2: Convert to fraction form
    131,488.65/181,453.91 = 74,909.61/x
  3. Step 3: Cross multiply
    131,488.65x = 181,453.91 × 74,909.61
  4. Step 4: Simplify right side
    131,488.65x = 13,592,641,256.53
  5. Step 5: Solve for x
    x = 13,592,641,256.53/131,488.65
  6. Step 6: Final answer
    x = 103,375.02

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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.