Home / 154,480.20-231,720.30-49,309.80

Finding the Fourth Proportional to 154,480.20, 231,720.30 and 49,309.80

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Solution

The fourth proportional to 154,480.20, 231,720.30 and 49,309.80 is: 73,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,480.20 : 231,720.30 = 49,309.80 : x
  2. Step 2: Convert to fraction form
    154,480.20/231,720.30 = 49,309.80/x
  3. Step 3: Cross multiply
    154,480.20x = 231,720.30 × 49,309.80
  4. Step 4: Simplify right side
    154,480.20x = 11,426,081,648.94
  5. Step 5: Solve for x
    x = 11,426,081,648.94/154,480.20
  6. Step 6: Final answer
    x = 73,964.70

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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.