Home / 198,031.50-273,300.75-108,624.78

Finding the Fourth Proportional to 198,031.50, 273,300.75 and 108,624.78

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Solution

The fourth proportional to 198,031.50, 273,300.75 and 108,624.78 is: 149,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,031.50 : 273,300.75 = 108,624.78 : x
  2. Step 2: Convert to fraction form
    198,031.50/273,300.75 = 108,624.78/x
  3. Step 3: Cross multiply
    198,031.50x = 273,300.75 × 108,624.78
  4. Step 4: Simplify right side
    198,031.50x = 29,687,233,842.59
  5. Step 5: Solve for x
    x = 29,687,233,842.59/198,031.50
  6. Step 6: Final answer
    x = 149,911.67

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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.