Home / 127,591.78-191,428.65-38,862.46

Finding the Fourth Proportional to 127,591.78, 191,428.65 and 38,862.46

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Solution

The fourth proportional to 127,591.78, 191,428.65 and 38,862.46 is: 58,306.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,591.78 : 191,428.65 = 38,862.46 : x
  2. Step 2: Convert to fraction form
    127,591.78/191,428.65 = 38,862.46/x
  3. Step 3: Cross multiply
    127,591.78x = 191,428.65 × 38,862.46
  4. Step 4: Simplify right side
    127,591.78x = 7,439,388,253.48
  5. Step 5: Solve for x
    x = 7,439,388,253.48/127,591.78
  6. Step 6: Final answer
    x = 58,306.17

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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.