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Finding the Fourth Proportional to 138,100.60, 207,155.22 and 44,607.16

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Solution

The fourth proportional to 138,100.60, 207,155.22 and 44,607.16 is: 66,912.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,100.60 : 207,155.22 = 44,607.16 : x
  2. Step 2: Convert to fraction form
    138,100.60/207,155.22 = 44,607.16/x
  3. Step 3: Cross multiply
    138,100.60x = 207,155.22 × 44,607.16
  4. Step 4: Simplify right side
    138,100.60x = 9,240,606,043.38
  5. Step 5: Solve for x
    x = 9,240,606,043.38/138,100.60
  6. Step 6: Final answer
    x = 66,912.14

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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.