Home / 115,470.20-159,204.75-88,279.98

Finding the Fourth Proportional to 115,470.20, 159,204.75 and 88,279.98

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Solution

The fourth proportional to 115,470.20, 159,204.75 and 88,279.98 is: 121,716.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,470.20 : 159,204.75 = 88,279.98 : x
  2. Step 2: Convert to fraction form
    115,470.20/159,204.75 = 88,279.98/x
  3. Step 3: Cross multiply
    115,470.20x = 159,204.75 × 88,279.98
  4. Step 4: Simplify right side
    115,470.20x = 14,054,592,145.91
  5. Step 5: Solve for x
    x = 14,054,592,145.91/115,470.20
  6. Step 6: Final answer
    x = 121,716.18

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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.