Home / 154,024.20-231,036.30-54,199.80

Finding the Fourth Proportional to 154,024.20, 231,036.30 and 54,199.80

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Solution

The fourth proportional to 154,024.20, 231,036.30 and 54,199.80 is: 81,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,024.20 : 231,036.30 = 54,199.80 : x
  2. Step 2: Convert to fraction form
    154,024.20/231,036.30 = 54,199.80/x
  3. Step 3: Cross multiply
    154,024.20x = 231,036.30 × 54,199.80
  4. Step 4: Simplify right side
    154,024.20x = 12,522,121,252.74
  5. Step 5: Solve for x
    x = 12,522,121,252.74/154,024.20
  6. Step 6: Final answer
    x = 81,299.70

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1.5x scale

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.