Home / 127,910.50-176,585.70-76,934.61

Finding the Fourth Proportional to 127,910.50, 176,585.70 and 76,934.61

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Solution

The fourth proportional to 127,910.50, 176,585.70 and 76,934.61 is: 106,211.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,910.50 : 176,585.70 = 76,934.61 : x
  2. Step 2: Convert to fraction form
    127,910.50/176,585.70 = 76,934.61/x
  3. Step 3: Cross multiply
    127,910.50x = 176,585.70 × 76,934.61
  4. Step 4: Simplify right side
    127,910.50x = 13,585,551,600.45
  5. Step 5: Solve for x
    x = 13,585,551,600.45/127,910.50
  6. Step 6: Final answer
    x = 106,211.39

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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.