Home / 127,834.56-176,428.80-71,251.20

Finding the Fourth Proportional to 127,834.56, 176,428.80 and 71,251.20

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Solution

The fourth proportional to 127,834.56, 176,428.80 and 71,251.20 is: 98,336.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,834.56 : 176,428.80 = 71,251.20 : x
  2. Step 2: Convert to fraction form
    127,834.56/176,428.80 = 71,251.20/x
  3. Step 3: Cross multiply
    127,834.56x = 176,428.80 × 71,251.20
  4. Step 4: Simplify right side
    127,834.56x = 12,570,763,714.56
  5. Step 5: Solve for x
    x = 12,570,763,714.56/127,834.56
  6. Step 6: Final answer
    x = 98,336.19

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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.