Home / 154,489.13-231,821.36-83,410.82

Finding the Fourth Proportional to 154,489.13, 231,821.36 and 83,410.82

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Solution

The fourth proportional to 154,489.13, 231,821.36 and 83,410.82 is: 125,163.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,489.13 : 231,821.36 = 83,410.82 : x
  2. Step 2: Convert to fraction form
    154,489.13/231,821.36 = 83,410.82/x
  3. Step 3: Cross multiply
    154,489.13x = 231,821.36 × 83,410.82
  4. Step 4: Simplify right side
    154,489.13x = 19,336,409,731.12
  5. Step 5: Solve for x
    x = 19,336,409,731.12/154,489.13
  6. Step 6: Final answer
    x = 125,163.56

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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.