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Finding the Fourth Proportional to 133,872.72, 200,702.52 and 66,357.24

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Solution

The fourth proportional to 133,872.72, 200,702.52 and 66,357.24 is: 99,483.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,872.72 : 200,702.52 = 66,357.24 : x
  2. Step 2: Convert to fraction form
    133,872.72/200,702.52 = 66,357.24/x
  3. Step 3: Cross multiply
    133,872.72x = 200,702.52 × 66,357.24
  4. Step 4: Simplify right side
    133,872.72x = 13,318,065,288.24
  5. Step 5: Solve for x
    x = 13,318,065,288.24/133,872.72
  6. Step 6: Final answer
    x = 99,483.04

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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.