Home / 198,467.29-297,710.66-80,123.86

Finding the Fourth Proportional to 198,467.29, 297,710.66 and 80,123.86

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Solution

The fourth proportional to 198,467.29, 297,710.66 and 80,123.86 is: 120,189.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,467.29 : 297,710.66 = 80,123.86 : x
  2. Step 2: Convert to fraction form
    198,467.29/297,710.66 = 80,123.86/x
  3. Step 3: Cross multiply
    198,467.29x = 297,710.66 × 80,123.86
  4. Step 4: Simplify right side
    198,467.29x = 23,853,727,242.35
  5. Step 5: Solve for x
    x = 23,853,727,242.35/198,467.29
  6. Step 6: Final answer
    x = 120,189.72

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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.