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Finding the Fourth Proportional to 138,130.60, 207,143.82 and 44,611.24

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Solution

The fourth proportional to 138,130.60, 207,143.82 and 44,611.24 is: 66,900.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,130.60 : 207,143.82 = 44,611.24 : x
  2. Step 2: Convert to fraction form
    138,130.60/207,143.82 = 44,611.24/x
  3. Step 3: Cross multiply
    138,130.60x = 207,143.82 × 44,611.24
  4. Step 4: Simplify right side
    138,130.60x = 9,240,942,668.54
  5. Step 5: Solve for x
    x = 9,240,942,668.54/138,130.60
  6. Step 6: Final answer
    x = 66,900.04

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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.