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Finding the Fourth Proportional to 176,375.06, 243,400.70 and 99,909.91

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Solution

The fourth proportional to 176,375.06, 243,400.70 and 99,909.91 is: 137,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,375.06 : 243,400.70 = 99,909.91 : x
  2. Step 2: Convert to fraction form
    176,375.06/243,400.70 = 99,909.91/x
  3. Step 3: Cross multiply
    176,375.06x = 243,400.70 × 99,909.91
  4. Step 4: Simplify right side
    176,375.06x = 24,318,140,314.38
  5. Step 5: Solve for x
    x = 24,318,140,314.38/176,375.06
  6. Step 6: Final answer
    x = 137,877.44

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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.