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Finding the Fourth Proportional to 137,369.57, 206,187.33 and 66,342.08

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Solution

The fourth proportional to 137,369.57, 206,187.33 and 66,342.08 is: 99,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,369.57 : 206,187.33 = 66,342.08 : x
  2. Step 2: Convert to fraction form
    137,369.57/206,187.33 = 66,342.08/x
  3. Step 3: Cross multiply
    137,369.57x = 206,187.33 × 66,342.08
  4. Step 4: Simplify right side
    137,369.57x = 13,678,895,310.91
  5. Step 5: Solve for x
    x = 13,678,895,310.91/137,369.57
  6. Step 6: Final answer
    x = 99,577.34

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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.