Home / 127,656.40-176,165.72-71,081.12

Finding the Fourth Proportional to 127,656.40, 176,165.72 and 71,081.12

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Solution

The fourth proportional to 127,656.40, 176,165.72 and 71,081.12 is: 98,091.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,656.40 : 176,165.72 = 71,081.12 : x
  2. Step 2: Convert to fraction form
    127,656.40/176,165.72 = 71,081.12/x
  3. Step 3: Cross multiply
    127,656.40x = 176,165.72 × 71,081.12
  4. Step 4: Simplify right side
    127,656.40x = 12,522,056,683.21
  5. Step 5: Solve for x
    x = 12,522,056,683.21/127,656.40
  6. Step 6: Final answer
    x = 98,091.88

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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.