Home / 154,485.10-231,727.65-54,757.90

Finding the Fourth Proportional to 154,485.10, 231,727.65 and 54,757.90

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Solution

The fourth proportional to 154,485.10, 231,727.65 and 54,757.90 is: 82,136.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,485.10 : 231,727.65 = 54,757.90 : x
  2. Step 2: Convert to fraction form
    154,485.10/231,727.65 = 54,757.90/x
  3. Step 3: Cross multiply
    154,485.10x = 231,727.65 × 54,757.90
  4. Step 4: Simplify right side
    154,485.10x = 12,688,919,485.94
  5. Step 5: Solve for x
    x = 12,688,919,485.94/154,485.10
  6. Step 6: Final answer
    x = 82,136.85

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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.