Home / 198,418.55-273,820.91-107,774.69

Finding the Fourth Proportional to 198,418.55, 273,820.91 and 107,774.69

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Solution

The fourth proportional to 198,418.55, 273,820.91 and 107,774.69 is: 148,730.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,418.55 : 273,820.91 = 107,774.69 : x
  2. Step 2: Convert to fraction form
    198,418.55/273,820.91 = 107,774.69/x
  3. Step 3: Cross multiply
    198,418.55x = 273,820.91 × 107,774.69
  4. Step 4: Simplify right side
    198,418.55x = 29,510,961,782.79
  5. Step 5: Solve for x
    x = 29,510,961,782.79/198,418.55
  6. Step 6: Final answer
    x = 148,730.86

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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.