Home / 127,714.40-176,247.60-71,127.20

Finding the Fourth Proportional to 127,714.40, 176,247.60 and 71,127.20

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Solution

The fourth proportional to 127,714.40, 176,247.60 and 71,127.20 is: 98,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,714.40 : 176,247.60 = 71,127.20 : x
  2. Step 2: Convert to fraction form
    127,714.40/176,247.60 = 71,127.20/x
  3. Step 3: Cross multiply
    127,714.40x = 176,247.60 × 71,127.20
  4. Step 4: Simplify right side
    127,714.40x = 12,535,998,294.72
  5. Step 5: Solve for x
    x = 12,535,998,294.72/127,714.40
  6. Step 6: Final answer
    x = 98,156.50

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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.