Home / 198,113.18-273,396.40-107,469.32

Finding the Fourth Proportional to 198,113.18, 273,396.40 and 107,469.32

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Solution

The fourth proportional to 198,113.18, 273,396.40 and 107,469.32 is: 148,307.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,113.18 : 273,396.40 = 107,469.32 : x
  2. Step 2: Convert to fraction form
    198,113.18/273,396.40 = 107,469.32/x
  3. Step 3: Cross multiply
    198,113.18x = 273,396.40 × 107,469.32
  4. Step 4: Simplify right side
    198,113.18x = 29,381,723,562.79
  5. Step 5: Solve for x
    x = 29,381,723,562.79/198,113.18
  6. Step 6: Final answer
    x = 148,307.77

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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.