Home / 115,279.20-172,951.20-56,116.80

Finding the Fourth Proportional to 115,279.20, 172,951.20 and 56,116.80

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Solution

The fourth proportional to 115,279.20, 172,951.20 and 56,116.80 is: 84,190.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,279.20 : 172,951.20 = 56,116.80 : x
  2. Step 2: Convert to fraction form
    115,279.20/172,951.20 = 56,116.80/x
  3. Step 3: Cross multiply
    115,279.20x = 172,951.20 × 56,116.80
  4. Step 4: Simplify right side
    115,279.20x = 9,705,467,900.16
  5. Step 5: Solve for x
    x = 9,705,467,900.16/115,279.20
  6. Step 6: Final answer
    x = 84,190.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.