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Finding the Fourth Proportional to 187,101.65, 280,862.80 and 74,861.05

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Solution

The fourth proportional to 187,101.65, 280,862.80 and 74,861.05 is: 112,375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,101.65 : 280,862.80 = 74,861.05 : x
  2. Step 2: Convert to fraction form
    187,101.65/280,862.80 = 74,861.05/x
  3. Step 3: Cross multiply
    187,101.65x = 280,862.80 × 74,861.05
  4. Step 4: Simplify right side
    187,101.65x = 21,025,684,558.59
  5. Step 5: Solve for x
    x = 21,025,684,558.59/187,101.65
  6. Step 6: Final answer
    x = 112,375.73

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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.