Home / 127,726.92-176,261.40-71,138.70

Finding the Fourth Proportional to 127,726.92, 176,261.40 and 71,138.70

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Solution

The fourth proportional to 127,726.92, 176,261.40 and 71,138.70 is: 98,170.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,726.92 : 176,261.40 = 71,138.70 : x
  2. Step 2: Convert to fraction form
    127,726.92/176,261.40 = 71,138.70/x
  3. Step 3: Cross multiply
    127,726.92x = 176,261.40 × 71,138.70
  4. Step 4: Simplify right side
    127,726.92x = 12,539,006,856.18
  5. Step 5: Solve for x
    x = 12,539,006,856.18/127,726.92
  6. Step 6: Final answer
    x = 98,170.43

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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.