Home / 127,714.78-176,251.87-71,126.16

Finding the Fourth Proportional to 127,714.78, 176,251.87 and 71,126.16

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Solution

The fourth proportional to 127,714.78, 176,251.87 and 71,126.16 is: 98,157.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,714.78 : 176,251.87 = 71,126.16 : x
  2. Step 2: Convert to fraction form
    127,714.78/176,251.87 = 71,126.16/x
  3. Step 3: Cross multiply
    127,714.78x = 176,251.87 × 71,126.16
  4. Step 4: Simplify right side
    127,714.78x = 12,536,117,733.80
  5. Step 5: Solve for x
    x = 12,536,117,733.80/127,714.78
  6. Step 6: Final answer
    x = 98,157.14

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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.