Home / 154,161.85-231,073.88-79,285.96

Finding the Fourth Proportional to 154,161.85, 231,073.88 and 79,285.96

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Solution

The fourth proportional to 154,161.85, 231,073.88 and 79,285.96 is: 118,842.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,161.85 : 231,073.88 = 79,285.96 : x
  2. Step 2: Convert to fraction form
    154,161.85/231,073.88 = 79,285.96/x
  3. Step 3: Cross multiply
    154,161.85x = 231,073.88 × 79,285.96
  4. Step 4: Simplify right side
    154,161.85x = 18,320,914,406.72
  5. Step 5: Solve for x
    x = 18,320,914,406.72/154,161.85
  6. Step 6: Final answer
    x = 118,842.08

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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.