Home / 127,721.17-176,255.28-74,037.34

Finding the Fourth Proportional to 127,721.17, 176,255.28 and 74,037.34

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Solution

The fourth proportional to 127,721.17, 176,255.28 and 74,037.34 is: 102,171.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,721.17 : 176,255.28 = 74,037.34 : x
  2. Step 2: Convert to fraction form
    127,721.17/176,255.28 = 74,037.34/x
  3. Step 3: Cross multiply
    127,721.17x = 176,255.28 × 74,037.34
  4. Step 4: Simplify right side
    127,721.17x = 13,049,472,092.16
  5. Step 5: Solve for x
    x = 13,049,472,092.16/127,721.17
  6. Step 6: Final answer
    x = 102,171.57

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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.