Home / 127,929.18-176,542.56-71,344.20

Finding the Fourth Proportional to 127,929.18, 176,542.56 and 71,344.20

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Solution

The fourth proportional to 127,929.18, 176,542.56 and 71,344.20 is: 98,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,929.18 : 176,542.56 = 71,344.20 : x
  2. Step 2: Convert to fraction form
    127,929.18/176,542.56 = 71,344.20/x
  3. Step 3: Cross multiply
    127,929.18x = 176,542.56 × 71,344.20
  4. Step 4: Simplify right side
    127,929.18x = 12,595,287,709.15
  5. Step 5: Solve for x
    x = 12,595,287,709.15/127,929.18
  6. Step 6: Final answer
    x = 98,455.16

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1.5x scale

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.