Home / 198,258.12-273,590.10-107,609.80

Finding the Fourth Proportional to 198,258.12, 273,590.10 and 107,609.80

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Solution

The fourth proportional to 198,258.12, 273,590.10 and 107,609.80 is: 148,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,258.12 : 273,590.10 = 107,609.80 : x
  2. Step 2: Convert to fraction form
    198,258.12/273,590.10 = 107,609.80/x
  3. Step 3: Cross multiply
    198,258.12x = 273,590.10 × 107,609.80
  4. Step 4: Simplify right side
    198,258.12x = 29,440,975,942.98
  5. Step 5: Solve for x
    x = 29,440,975,942.98/198,258.12
  6. Step 6: Final answer
    x = 148,498.21

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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.