Home / 120,118.92-165,763.16-69,141.66

Finding the Fourth Proportional to 120,118.92, 165,763.16 and 69,141.66

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Solution

The fourth proportional to 120,118.92, 165,763.16 and 69,141.66 is: 95,414.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,118.92 : 165,763.16 = 69,141.66 : x
  2. Step 2: Convert to fraction form
    120,118.92/165,763.16 = 69,141.66/x
  3. Step 3: Cross multiply
    120,118.92x = 165,763.16 × 69,141.66
  4. Step 4: Simplify right side
    120,118.92x = 11,461,140,049.25
  5. Step 5: Solve for x
    x = 11,461,140,049.25/120,118.92
  6. Step 6: Final answer
    x = 95,414.94

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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.