Home / 132,346.20-198,519.30-70,138.20

Finding the Fourth Proportional to 132,346.20, 198,519.30 and 70,138.20

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Solution

The fourth proportional to 132,346.20, 198,519.30 and 70,138.20 is: 105,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,346.20 : 198,519.30 = 70,138.20 : x
  2. Step 2: Convert to fraction form
    132,346.20/198,519.30 = 70,138.20/x
  3. Step 3: Cross multiply
    132,346.20x = 198,519.30 × 70,138.20
  4. Step 4: Simplify right side
    132,346.20x = 13,923,786,367.26
  5. Step 5: Solve for x
    x = 13,923,786,367.26/132,346.20
  6. Step 6: Final answer
    x = 105,207.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.