Home / 84,335.88-126,356.12-75,183.24

Finding the Fourth Proportional to 84,335.88, 126,356.12 and 75,183.24

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Solution

The fourth proportional to 84,335.88, 126,356.12 and 75,183.24 is: 112,643.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,335.88 : 126,356.12 = 75,183.24 : x
  2. Step 2: Convert to fraction form
    84,335.88/126,356.12 = 75,183.24/x
  3. Step 3: Cross multiply
    84,335.88x = 126,356.12 × 75,183.24
  4. Step 4: Simplify right side
    84,335.88x = 9,499,862,495.43
  5. Step 5: Solve for x
    x = 9,499,862,495.43/84,335.88
  6. Step 6: Final answer
    x = 112,643.19

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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.