Home / 127,770.28-176,320.61-70,414.92

Finding the Fourth Proportional to 127,770.28, 176,320.61 and 70,414.92

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Solution

The fourth proportional to 127,770.28, 176,320.61 and 70,414.92 is: 97,171.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,770.28 : 176,320.61 = 70,414.92 : x
  2. Step 2: Convert to fraction form
    127,770.28/176,320.61 = 70,414.92/x
  3. Step 3: Cross multiply
    127,770.28x = 176,320.61 × 70,414.92
  4. Step 4: Simplify right side
    127,770.28x = 12,415,601,382.74
  5. Step 5: Solve for x
    x = 12,415,601,382.74/127,770.28
  6. Step 6: Final answer
    x = 97,171.28

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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.