Home / 154,572.44-231,850.96-90,566.78

Finding the Fourth Proportional to 154,572.44, 231,850.96 and 90,566.78

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Solution

The fourth proportional to 154,572.44, 231,850.96 and 90,566.78 is: 135,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,572.44 : 231,850.96 = 90,566.78 : x
  2. Step 2: Convert to fraction form
    154,572.44/231,850.96 = 90,566.78/x
  3. Step 3: Cross multiply
    154,572.44x = 231,850.96 × 90,566.78
  4. Step 4: Simplify right side
    154,572.44x = 20,997,993,501.44
  5. Step 5: Solve for x
    x = 20,997,993,501.44/154,572.44
  6. Step 6: Final answer
    x = 135,845.65

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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.