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Finding the Fourth Proportional to 138,600.60, 207,512.10 and 134,712.60

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Solution

The fourth proportional to 138,600.60, 207,512.10 and 134,712.60 is: 201,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,600.60 : 207,512.10 = 134,712.60 : x
  2. Step 2: Convert to fraction form
    138,600.60/207,512.10 = 134,712.60/x
  3. Step 3: Cross multiply
    138,600.60x = 207,512.10 × 134,712.60
  4. Step 4: Simplify right side
    138,600.60x = 27,954,494,522.46
  5. Step 5: Solve for x
    x = 27,954,494,522.46/138,600.60
  6. Step 6: Final answer
    x = 201,691.01

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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.