Home / 198,115.59-297,247.37-79,820.49

Finding the Fourth Proportional to 198,115.59, 297,247.37 and 79,820.49

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Solution

The fourth proportional to 198,115.59, 297,247.37 and 79,820.49 is: 119,760.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,115.59 : 297,247.37 = 79,820.49 : x
  2. Step 2: Convert to fraction form
    198,115.59/297,247.37 = 79,820.49/x
  3. Step 3: Cross multiply
    198,115.59x = 297,247.37 × 79,820.49
  4. Step 4: Simplify right side
    198,115.59x = 23,726,430,325.51
  5. Step 5: Solve for x
    x = 23,726,430,325.51/198,115.59
  6. Step 6: Final answer
    x = 119,760.54

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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.