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Finding the Fourth Proportional to 133,630.30, 200,445.45 and 40,123.90

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Solution

The fourth proportional to 133,630.30, 200,445.45 and 40,123.90 is: 60,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,630.30 : 200,445.45 = 40,123.90 : x
  2. Step 2: Convert to fraction form
    133,630.30/200,445.45 = 40,123.90/x
  3. Step 3: Cross multiply
    133,630.30x = 200,445.45 × 40,123.90
  4. Step 4: Simplify right side
    133,630.30x = 8,042,653,191.26
  5. Step 5: Solve for x
    x = 8,042,653,191.26/133,630.30
  6. Step 6: Final answer
    x = 60,185.85

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1.5x scale

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.