Home / 127,540.80-191,397.60-83,059.20

Finding the Fourth Proportional to 127,540.80, 191,397.60 and 83,059.20

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Solution

The fourth proportional to 127,540.80, 191,397.60 and 83,059.20 is: 124,645.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,540.80 : 191,397.60 = 83,059.20 : x
  2. Step 2: Convert to fraction form
    127,540.80/191,397.60 = 83,059.20/x
  3. Step 3: Cross multiply
    127,540.80x = 191,397.60 × 83,059.20
  4. Step 4: Simplify right side
    127,540.80x = 15,897,331,537.92
  5. Step 5: Solve for x
    x = 15,897,331,537.92/127,540.80
  6. Step 6: Final answer
    x = 124,645.07

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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.