Home / 154,462.30-231,693.45-54,621.70

Finding the Fourth Proportional to 154,462.30, 231,693.45 and 54,621.70

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Solution

The fourth proportional to 154,462.30, 231,693.45 and 54,621.70 is: 81,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,462.30 : 231,693.45 = 54,621.70 : x
  2. Step 2: Convert to fraction form
    154,462.30/231,693.45 = 54,621.70/x
  3. Step 3: Cross multiply
    154,462.30x = 231,693.45 × 54,621.70
  4. Step 4: Simplify right side
    154,462.30x = 12,655,490,117.87
  5. Step 5: Solve for x
    x = 12,655,490,117.87/154,462.30
  6. Step 6: Final answer
    x = 81,932.55

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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.