Home / 127,755.66-176,301.38-72,564.59

Finding the Fourth Proportional to 127,755.66, 176,301.38 and 72,564.59

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Solution

The fourth proportional to 127,755.66, 176,301.38 and 72,564.59 is: 100,138.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,755.66 : 176,301.38 = 72,564.59 : x
  2. Step 2: Convert to fraction form
    127,755.66/176,301.38 = 72,564.59/x
  3. Step 3: Cross multiply
    127,755.66x = 176,301.38 × 72,564.59
  4. Step 4: Simplify right side
    127,755.66x = 12,793,236,111.80
  5. Step 5: Solve for x
    x = 12,793,236,111.80/127,755.66
  6. Step 6: Final answer
    x = 100,138.31

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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.