Home / 154,150.79-231,257.17-54,381.68

Finding the Fourth Proportional to 154,150.79, 231,257.17 and 54,381.68

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Solution

The fourth proportional to 154,150.79, 231,257.17 and 54,381.68 is: 81,583.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,150.79 : 231,257.17 = 54,381.68 : x
  2. Step 2: Convert to fraction form
    154,150.79/231,257.17 = 54,381.68/x
  3. Step 3: Cross multiply
    154,150.79x = 231,257.17 × 54,381.68
  4. Step 4: Simplify right side
    154,150.79x = 12,576,152,260.36
  5. Step 5: Solve for x
    x = 12,576,152,260.36/154,150.79
  6. Step 6: Final answer
    x = 81,583.44

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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.