Home / 123,766.13-185,619.45-57,142.25

Finding the Fourth Proportional to 123,766.13, 185,619.45 and 57,142.25

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Solution

The fourth proportional to 123,766.13, 185,619.45 and 57,142.25 is: 85,699.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,766.13 : 185,619.45 = 57,142.25 : x
  2. Step 2: Convert to fraction form
    123,766.13/185,619.45 = 57,142.25/x
  3. Step 3: Cross multiply
    123,766.13x = 185,619.45 × 57,142.25
  4. Step 4: Simplify right side
    123,766.13x = 10,606,713,016.76
  5. Step 5: Solve for x
    x = 10,606,713,016.76/123,766.13
  6. Step 6: Final answer
    x = 85,699.64

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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.