Home / 127,671.19-176,187.45-71,083.78

Finding the Fourth Proportional to 127,671.19, 176,187.45 and 71,083.78

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Solution

The fourth proportional to 127,671.19, 176,187.45 and 71,083.78 is: 98,096.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,671.19 : 176,187.45 = 71,083.78 : x
  2. Step 2: Convert to fraction form
    127,671.19/176,187.45 = 71,083.78/x
  3. Step 3: Cross multiply
    127,671.19x = 176,187.45 × 71,083.78
  4. Step 4: Simplify right side
    127,671.19x = 12,524,069,760.66
  5. Step 5: Solve for x
    x = 12,524,069,760.66/127,671.19
  6. Step 6: Final answer
    x = 98,096.29

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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.