Home / 124,422.20-186,633.30-82,431.80

Finding the Fourth Proportional to 124,422.20, 186,633.30 and 82,431.80

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Solution

The fourth proportional to 124,422.20, 186,633.30 and 82,431.80 is: 123,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,422.20 : 186,633.30 = 82,431.80 : x
  2. Step 2: Convert to fraction form
    124,422.20/186,633.30 = 82,431.80/x
  3. Step 3: Cross multiply
    124,422.20x = 186,633.30 × 82,431.80
  4. Step 4: Simplify right side
    124,422.20x = 15,384,518,858.94
  5. Step 5: Solve for x
    x = 15,384,518,858.94/124,422.20
  6. Step 6: Final answer
    x = 123,647.70

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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.