Home / 127,732.56-176,276.38-71,143.92

Finding the Fourth Proportional to 127,732.56, 176,276.38 and 71,143.92

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Solution

The fourth proportional to 127,732.56, 176,276.38 and 71,143.92 is: 98,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,732.56 : 176,276.38 = 71,143.92 : x
  2. Step 2: Convert to fraction form
    127,732.56/176,276.38 = 71,143.92/x
  3. Step 3: Cross multiply
    127,732.56x = 176,276.38 × 71,143.92
  4. Step 4: Simplify right side
    127,732.56x = 12,540,992,676.61
  5. Step 5: Solve for x
    x = 12,540,992,676.61/127,732.56
  6. Step 6: Final answer
    x = 98,181.64

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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.