Home / 154,486.20-231,729.30-49,315.80

Finding the Fourth Proportional to 154,486.20, 231,729.30 and 49,315.80

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Solution

The fourth proportional to 154,486.20, 231,729.30 and 49,315.80 is: 73,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,486.20 : 231,729.30 = 49,315.80 : x
  2. Step 2: Convert to fraction form
    154,486.20/231,729.30 = 49,315.80/x
  3. Step 3: Cross multiply
    154,486.20x = 231,729.30 × 49,315.80
  4. Step 4: Simplify right side
    154,486.20x = 11,427,915,812.94
  5. Step 5: Solve for x
    x = 11,427,915,812.94/154,486.20
  6. Step 6: Final answer
    x = 73,973.70

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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.