Home / 127,736.55-176,281.89-71,147.91

Finding the Fourth Proportional to 127,736.55, 176,281.89 and 71,147.91

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Solution

The fourth proportional to 127,736.55, 176,281.89 and 71,147.91 is: 98,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,736.55 : 176,281.89 = 71,147.91 : x
  2. Step 2: Convert to fraction form
    127,736.55/176,281.89 = 71,147.91/x
  3. Step 3: Cross multiply
    127,736.55x = 176,281.89 × 71,147.91
  4. Step 4: Simplify right side
    127,736.55x = 12,542,088,044.35
  5. Step 5: Solve for x
    x = 12,542,088,044.35/127,736.55
  6. Step 6: Final answer
    x = 98,187.15

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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.