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Finding the Fourth Proportional to 138,369.44, 207,554.32 and 38,529.86

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Solution

The fourth proportional to 138,369.44, 207,554.32 and 38,529.86 is: 57,794.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,369.44 : 207,554.32 = 38,529.86 : x
  2. Step 2: Convert to fraction form
    138,369.44/207,554.32 = 38,529.86/x
  3. Step 3: Cross multiply
    138,369.44x = 207,554.32 × 38,529.86
  4. Step 4: Simplify right side
    138,369.44x = 7,997,038,892.00
  5. Step 5: Solve for x
    x = 7,997,038,892.00/138,369.44
  6. Step 6: Final answer
    x = 57,794.83

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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.