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Finding the Fourth Proportional to 154,757.81, 232,171.61 and 54,917.88

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Solution

The fourth proportional to 154,757.81, 232,171.61 and 54,917.88 is: 82,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,757.81 : 232,171.61 = 54,917.88 : x
  2. Step 2: Convert to fraction form
    154,757.81/232,171.61 = 54,917.88/x
  3. Step 3: Cross multiply
    154,757.81x = 232,171.61 × 54,917.88
  4. Step 4: Simplify right side
    154,757.81x = 12,750,372,342.80
  5. Step 5: Solve for x
    x = 12,750,372,342.80/154,757.81
  6. Step 6: Final answer
    x = 82,389.20

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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.