Home / 127,121.38-175,427.02-69,761.68

Finding the Fourth Proportional to 127,121.38, 175,427.02 and 69,761.68

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Solution

The fourth proportional to 127,121.38, 175,427.02 and 69,761.68 is: 96,270.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,121.38 : 175,427.02 = 69,761.68 : x
  2. Step 2: Convert to fraction form
    127,121.38/175,427.02 = 69,761.68/x
  3. Step 3: Cross multiply
    127,121.38x = 175,427.02 × 69,761.68
  4. Step 4: Simplify right side
    127,121.38x = 12,238,083,632.59
  5. Step 5: Solve for x
    x = 12,238,083,632.59/127,121.38
  6. Step 6: Final answer
    x = 96,270.85

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1.5x scale

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.