Home / 109,968.71-165,035.97-80,462.66

Finding the Fourth Proportional to 109,968.71, 165,035.97 and 80,462.66

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Solution

The fourth proportional to 109,968.71, 165,035.97 and 80,462.66 is: 120,754.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,968.71 : 165,035.97 = 80,462.66 : x
  2. Step 2: Convert to fraction form
    109,968.71/165,035.97 = 80,462.66/x
  3. Step 3: Cross multiply
    109,968.71x = 165,035.97 × 80,462.66
  4. Step 4: Simplify right side
    109,968.71x = 13,279,232,316.70
  5. Step 5: Solve for x
    x = 13,279,232,316.70/109,968.71
  6. Step 6: Final answer
    x = 120,754.65

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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.