Home / 116,769.20-161,132.22-76,419.05

Finding the Fourth Proportional to 116,769.20, 161,132.22 and 76,419.05

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Solution

The fourth proportional to 116,769.20, 161,132.22 and 76,419.05 is: 105,452.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,769.20 : 161,132.22 = 76,419.05 : x
  2. Step 2: Convert to fraction form
    116,769.20/161,132.22 = 76,419.05/x
  3. Step 3: Cross multiply
    116,769.20x = 161,132.22 × 76,419.05
  4. Step 4: Simplify right side
    116,769.20x = 12,313,570,371.13
  5. Step 5: Solve for x
    x = 12,313,570,371.13/116,769.20
  6. Step 6: Final answer
    x = 105,452.22

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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.