Home / 154,478.30-231,721.78-54,624.38

Finding the Fourth Proportional to 154,478.30, 231,721.78 and 54,624.38

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Solution

The fourth proportional to 154,478.30, 231,721.78 and 54,624.38 is: 81,938.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,478.30 : 231,721.78 = 54,624.38 : x
  2. Step 2: Convert to fraction form
    154,478.30/231,721.78 = 54,624.38/x
  3. Step 3: Cross multiply
    154,478.30x = 231,721.78 × 54,624.38
  4. Step 4: Simplify right side
    154,478.30x = 12,657,658,565.00
  5. Step 5: Solve for x
    x = 12,657,658,565.00/154,478.30
  6. Step 6: Final answer
    x = 81,938.10

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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.