Home / 125,589.24-173,312.64-71,874

Finding the Fourth Proportional to 125,589.24, 173,312.64 and 71,874

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Solution

The fourth proportional to 125,589.24, 173,312.64 and 71,874 is: 99,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,589.24 : 173,312.64 = 71,874 : x
  2. Step 2: Convert to fraction form
    125,589.24/173,312.64 = 71,874/x
  3. Step 3: Cross multiply
    125,589.24x = 173,312.64 × 71,874
  4. Step 4: Simplify right side
    125,589.24x = 12,456,672,687.36
  5. Step 5: Solve for x
    x = 12,456,672,687.36/125,589.24
  6. Step 6: Final answer
    x = 99,185.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.