Home / 127,716.11-176,253.70-71,127.49

Finding the Fourth Proportional to 127,716.11, 176,253.70 and 71,127.49

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Solution

The fourth proportional to 127,716.11, 176,253.70 and 71,127.49 is: 98,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,716.11 : 176,253.70 = 71,127.49 : x
  2. Step 2: Convert to fraction form
    127,716.11/176,253.70 = 71,127.49/x
  3. Step 3: Cross multiply
    127,716.11x = 176,253.70 × 71,127.49
  4. Step 4: Simplify right side
    127,716.11x = 12,536,482,402.94
  5. Step 5: Solve for x
    x = 12,536,482,402.94/127,716.11
  6. Step 6: Final answer
    x = 98,158.97

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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.