Home / 121,944.56-168,298.92-74,195.04

Finding the Fourth Proportional to 121,944.56, 168,298.92 and 74,195.04

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Solution

The fourth proportional to 121,944.56, 168,298.92 and 74,195.04 is: 102,398.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,944.56 : 168,298.92 = 74,195.04 : x
  2. Step 2: Convert to fraction form
    121,944.56/168,298.92 = 74,195.04/x
  3. Step 3: Cross multiply
    121,944.56x = 168,298.92 × 74,195.04
  4. Step 4: Simplify right side
    121,944.56x = 12,486,945,101.36
  5. Step 5: Solve for x
    x = 12,486,945,101.36/121,944.56
  6. Step 6: Final answer
    x = 102,398.54

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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.