Home / 127,638.76-176,147.56-71,050.12

Finding the Fourth Proportional to 127,638.76, 176,147.56 and 71,050.12

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Solution

The fourth proportional to 127,638.76, 176,147.56 and 71,050.12 is: 98,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,638.76 : 176,147.56 = 71,050.12 : x
  2. Step 2: Convert to fraction form
    127,638.76/176,147.56 = 71,050.12/x
  3. Step 3: Cross multiply
    127,638.76x = 176,147.56 × 71,050.12
  4. Step 4: Simplify right side
    127,638.76x = 12,515,305,275.71
  5. Step 5: Solve for x
    x = 12,515,305,275.71/127,638.76
  6. Step 6: Final answer
    x = 98,052.55

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Half scale
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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.