Home / 127,732.30-176,276.02-71,143.66

Finding the Fourth Proportional to 127,732.30, 176,276.02 and 71,143.66

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Solution

The fourth proportional to 127,732.30, 176,276.02 and 71,143.66 is: 98,181.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,732.30 : 176,276.02 = 71,143.66 : x
  2. Step 2: Convert to fraction form
    127,732.30/176,276.02 = 71,143.66/x
  3. Step 3: Cross multiply
    127,732.30x = 176,276.02 × 71,143.66
  4. Step 4: Simplify right side
    127,732.30x = 12,540,921,233.03
  5. Step 5: Solve for x
    x = 12,540,921,233.03/127,732.30
  6. Step 6: Final answer
    x = 98,181.28

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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.