Home / 127,332.20-175,687.78-76,360.68

Finding the Fourth Proportional to 127,332.20, 175,687.78 and 76,360.68

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Solution

The fourth proportional to 127,332.20, 175,687.78 and 76,360.68 is: 105,359.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,332.20 : 175,687.78 = 76,360.68 : x
  2. Step 2: Convert to fraction form
    127,332.20/175,687.78 = 76,360.68/x
  3. Step 3: Cross multiply
    127,332.20x = 175,687.78 × 76,360.68
  4. Step 4: Simplify right side
    127,332.20x = 13,415,638,348.49
  5. Step 5: Solve for x
    x = 13,415,638,348.49/127,332.20
  6. Step 6: Final answer
    x = 105,359.35

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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.