Home / 198,150.40-297,222.16-79,818.72

Finding the Fourth Proportional to 198,150.40, 297,222.16 and 79,818.72

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Solution

The fourth proportional to 198,150.40, 297,222.16 and 79,818.72 is: 119,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,150.40 : 297,222.16 = 79,818.72 : x
  2. Step 2: Convert to fraction form
    198,150.40/297,222.16 = 79,818.72/x
  3. Step 3: Cross multiply
    198,150.40x = 297,222.16 × 79,818.72
  4. Step 4: Simplify right side
    198,150.40x = 23,723,891,202.37
  5. Step 5: Solve for x
    x = 23,723,891,202.37/198,150.40
  6. Step 6: Final answer
    x = 119,726.69

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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.