Home / 127,812.94-176,382.20-76,854.85

Finding the Fourth Proportional to 127,812.94, 176,382.20 and 76,854.85

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Solution

The fourth proportional to 127,812.94, 176,382.20 and 76,854.85 is: 106,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,812.94 : 176,382.20 = 76,854.85 : x
  2. Step 2: Convert to fraction form
    127,812.94/176,382.20 = 76,854.85/x
  3. Step 3: Cross multiply
    127,812.94x = 176,382.20 × 76,854.85
  4. Step 4: Simplify right side
    127,812.94x = 13,555,827,523.67
  5. Step 5: Solve for x
    x = 13,555,827,523.67/127,812.94
  6. Step 6: Final answer
    x = 106,059.90

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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.