Home / 123,766.68-185,620.29-57,142.80

Finding the Fourth Proportional to 123,766.68, 185,620.29 and 57,142.80

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Solution

The fourth proportional to 123,766.68, 185,620.29 and 57,142.80 is: 85,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,766.68 : 185,620.29 = 57,142.80 : x
  2. Step 2: Convert to fraction form
    123,766.68/185,620.29 = 57,142.80/x
  3. Step 3: Cross multiply
    123,766.68x = 185,620.29 × 57,142.80
  4. Step 4: Simplify right side
    123,766.68x = 10,606,863,107.41
  5. Step 5: Solve for x
    x = 10,606,863,107.41/123,766.68
  6. Step 6: Final answer
    x = 85,700.47

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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.