Home / 127,655.76-176,168.04-71,070.96

Finding the Fourth Proportional to 127,655.76, 176,168.04 and 71,070.96

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Solution

The fourth proportional to 127,655.76, 176,168.04 and 71,070.96 is: 98,079.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,655.76 : 176,168.04 = 71,070.96 : x
  2. Step 2: Convert to fraction form
    127,655.76/176,168.04 = 71,070.96/x
  3. Step 3: Cross multiply
    127,655.76x = 176,168.04 × 71,070.96
  4. Step 4: Simplify right side
    127,655.76x = 12,520,431,724.12
  5. Step 5: Solve for x
    x = 12,520,431,724.12/127,655.76
  6. Step 6: Final answer
    x = 98,079.65

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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.