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Finding the Fourth Proportional to 139,366.25, 207,996.20 and 125,914.17

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Solution

The fourth proportional to 139,366.25, 207,996.20 and 125,914.17 is: 187,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,366.25 : 207,996.20 = 125,914.17 : x
  2. Step 2: Convert to fraction form
    139,366.25/207,996.20 = 125,914.17/x
  3. Step 3: Cross multiply
    139,366.25x = 207,996.20 × 125,914.17
  4. Step 4: Simplify right side
    139,366.25x = 26,189,668,256.58
  5. Step 5: Solve for x
    x = 26,189,668,256.58/139,366.25
  6. Step 6: Final answer
    x = 187,919.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.