Home / 127,732.32-176,276.02-71,143.70

Finding the Fourth Proportional to 127,732.32, 176,276.02 and 71,143.70

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Solution

The fourth proportional to 127,732.32, 176,276.02 and 71,143.70 is: 98,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,732.32 : 176,276.02 = 71,143.70 : x
  2. Step 2: Convert to fraction form
    127,732.32/176,276.02 = 71,143.70/x
  3. Step 3: Cross multiply
    127,732.32x = 176,276.02 × 71,143.70
  4. Step 4: Simplify right side
    127,732.32x = 12,540,928,284.07
  5. Step 5: Solve for x
    x = 12,540,928,284.07/127,732.32
  6. Step 6: Final answer
    x = 98,181.32

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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.