Home / 125,515.71-173,168.91-80,219.82

Finding the Fourth Proportional to 125,515.71, 173,168.91 and 80,219.82

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Solution

The fourth proportional to 125,515.71, 173,168.91 and 80,219.82 is: 110,676.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,515.71 : 173,168.91 = 80,219.82 : x
  2. Step 2: Convert to fraction form
    125,515.71/173,168.91 = 80,219.82/x
  3. Step 3: Cross multiply
    125,515.71x = 173,168.91 × 80,219.82
  4. Step 4: Simplify right side
    125,515.71x = 13,891,578,789.80
  5. Step 5: Solve for x
    x = 13,891,578,789.80/125,515.71
  6. Step 6: Final answer
    x = 110,676.02

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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.