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Finding the Fourth Proportional to 138,175.60, 207,223.08 and 63,253.36

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Solution

The fourth proportional to 138,175.60, 207,223.08 and 63,253.36 is: 94,861.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,175.60 : 207,223.08 = 63,253.36 : x
  2. Step 2: Convert to fraction form
    138,175.60/207,223.08 = 63,253.36/x
  3. Step 3: Cross multiply
    138,175.60x = 207,223.08 × 63,253.36
  4. Step 4: Simplify right side
    138,175.60x = 13,107,556,079.55
  5. Step 5: Solve for x
    x = 13,107,556,079.55/138,175.60
  6. Step 6: Final answer
    x = 94,861.58

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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.