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Finding the Fourth Proportional to 138,797.35, 207,771.38 and 88,925.55

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Solution

The fourth proportional to 138,797.35, 207,771.38 and 88,925.55 is: 133,116.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,797.35 : 207,771.38 = 88,925.55 : x
  2. Step 2: Convert to fraction form
    138,797.35/207,771.38 = 88,925.55/x
  3. Step 3: Cross multiply
    138,797.35x = 207,771.38 × 88,925.55
  4. Step 4: Simplify right side
    138,797.35x = 18,476,183,350.46
  5. Step 5: Solve for x
    x = 18,476,183,350.46/138,797.35
  6. Step 6: Final answer
    x = 133,116.26

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1.5x scale

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.