Home / 154,558.40-231,618.90-135,750.20

Finding the Fourth Proportional to 154,558.40, 231,618.90 and 135,750.20

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Solution

The fourth proportional to 154,558.40, 231,618.90 and 135,750.20 is: 203,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,558.40 : 231,618.90 = 135,750.20 : x
  2. Step 2: Convert to fraction form
    154,558.40/231,618.90 = 135,750.20/x
  3. Step 3: Cross multiply
    154,558.40x = 231,618.90 × 135,750.20
  4. Step 4: Simplify right side
    154,558.40x = 31,442,311,998.78
  5. Step 5: Solve for x
    x = 31,442,311,998.78/154,558.40
  6. Step 6: Final answer
    x = 203,433.21

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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.