Home / 121,301.42-182,081.52-107,350.18

Finding the Fourth Proportional to 121,301.42, 182,081.52 and 107,350.18

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Solution

The fourth proportional to 121,301.42, 182,081.52 and 107,350.18 is: 161,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,301.42 : 182,081.52 = 107,350.18 : x
  2. Step 2: Convert to fraction form
    121,301.42/182,081.52 = 107,350.18/x
  3. Step 3: Cross multiply
    121,301.42x = 182,081.52 × 107,350.18
  4. Step 4: Simplify right side
    121,301.42x = 19,546,483,491.47
  5. Step 5: Solve for x
    x = 19,546,483,491.47/121,301.42
  6. Step 6: Final answer
    x = 161,139.78

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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.