Home / 282,561.11-423,863.37-80,153.75

Finding the Fourth Proportional to 282,561.11, 423,863.37 and 80,153.75

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Solution

The fourth proportional to 282,561.11, 423,863.37 and 80,153.75 is: 120,236.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,561.11 : 423,863.37 = 80,153.75 : x
  2. Step 2: Convert to fraction form
    282,561.11/423,863.37 = 80,153.75/x
  3. Step 3: Cross multiply
    282,561.11x = 423,863.37 × 80,153.75
  4. Step 4: Simplify right side
    282,561.11x = 33,974,238,593.14
  5. Step 5: Solve for x
    x = 33,974,238,593.14/282,561.11
  6. Step 6: Final answer
    x = 120,236.78

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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.