Home / 198,789.80-298,082.55-58,530.20

Finding the Fourth Proportional to 198,789.80, 298,082.55 and 58,530.20

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Solution

The fourth proportional to 198,789.80, 298,082.55 and 58,530.20 is: 87,765.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,789.80 : 298,082.55 = 58,530.20 : x
  2. Step 2: Convert to fraction form
    198,789.80/298,082.55 = 58,530.20/x
  3. Step 3: Cross multiply
    198,789.80x = 298,082.55 × 58,530.20
  4. Step 4: Simplify right side
    198,789.80x = 17,446,831,268.01
  5. Step 5: Solve for x
    x = 17,446,831,268.01/198,789.80
  6. Step 6: Final answer
    x = 87,765.22

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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.