Home / 136,426.88-188,261.78-75,171.17

Finding the Fourth Proportional to 136,426.88, 188,261.78 and 75,171.17

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Solution

The fourth proportional to 136,426.88, 188,261.78 and 75,171.17 is: 103,732.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,426.88 : 188,261.78 = 75,171.17 : x
  2. Step 2: Convert to fraction form
    136,426.88/188,261.78 = 75,171.17/x
  3. Step 3: Cross multiply
    136,426.88x = 188,261.78 × 75,171.17
  4. Step 4: Simplify right side
    136,426.88x = 14,151,856,951.72
  5. Step 5: Solve for x
    x = 14,151,856,951.72/136,426.88
  6. Step 6: Final answer
    x = 103,732.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.