Home / 116,722.28-161,074.62-65,734.80

Finding the Fourth Proportional to 116,722.28, 161,074.62 and 65,734.80

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Solution

The fourth proportional to 116,722.28, 161,074.62 and 65,734.80 is: 90,712.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,722.28 : 161,074.62 = 65,734.80 : x
  2. Step 2: Convert to fraction form
    116,722.28/161,074.62 = 65,734.80/x
  3. Step 3: Cross multiply
    116,722.28x = 161,074.62 × 65,734.80
  4. Step 4: Simplify right side
    116,722.28x = 10,588,207,930.78
  5. Step 5: Solve for x
    x = 10,588,207,930.78/116,722.28
  6. Step 6: Final answer
    x = 90,712.83

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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.