Home / 154,108.49-231,319.89-83,028.15

Finding the Fourth Proportional to 154,108.49, 231,319.89 and 83,028.15

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Solution

The fourth proportional to 154,108.49, 231,319.89 and 83,028.15 is: 124,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,108.49 : 231,319.89 = 83,028.15 : x
  2. Step 2: Convert to fraction form
    154,108.49/231,319.89 = 83,028.15/x
  3. Step 3: Cross multiply
    154,108.49x = 231,319.89 × 83,028.15
  4. Step 4: Simplify right side
    154,108.49x = 19,206,062,524.90
  5. Step 5: Solve for x
    x = 19,206,062,524.90/154,108.49
  6. Step 6: Final answer
    x = 124,626.90

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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.