Home / 198,122.84-273,408.60-107,478.86

Finding the Fourth Proportional to 198,122.84, 273,408.60 and 107,478.86

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Solution

The fourth proportional to 198,122.84, 273,408.60 and 107,478.86 is: 148,320.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,122.84 : 273,408.60 = 107,478.86 : x
  2. Step 2: Convert to fraction form
    198,122.84/273,408.60 = 107,478.86/x
  3. Step 3: Cross multiply
    198,122.84x = 273,408.60 × 107,478.86
  4. Step 4: Simplify right side
    198,122.84x = 29,385,644,642.20
  5. Step 5: Solve for x
    x = 29,385,644,642.20/198,122.84
  6. Step 6: Final answer
    x = 148,320.33

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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.