Home / 154,403.53-231,623.97-54,543.28

Finding the Fourth Proportional to 154,403.53, 231,623.97 and 54,543.28

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Solution

The fourth proportional to 154,403.53, 231,623.97 and 54,543.28 is: 81,821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,403.53 : 231,623.97 = 54,543.28 : x
  2. Step 2: Convert to fraction form
    154,403.53/231,623.97 = 54,543.28/x
  3. Step 3: Cross multiply
    154,403.53x = 231,623.97 × 54,543.28
  4. Step 4: Simplify right side
    154,403.53x = 12,633,531,050.42
  5. Step 5: Solve for x
    x = 12,633,531,050.42/154,403.53
  6. Step 6: Final answer
    x = 81,821.52

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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.