Home / 131,722.20-197,291.70-108,394.20

Finding the Fourth Proportional to 131,722.20, 197,291.70 and 108,394.20

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Solution

The fourth proportional to 131,722.20, 197,291.70 and 108,394.20 is: 162,351.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,722.20 : 197,291.70 = 108,394.20 : x
  2. Step 2: Convert to fraction form
    131,722.20/197,291.70 = 108,394.20/x
  3. Step 3: Cross multiply
    131,722.20x = 197,291.70 × 108,394.20
  4. Step 4: Simplify right side
    131,722.20x = 21,385,275,988.14
  5. Step 5: Solve for x
    x = 21,385,275,988.14/131,722.20
  6. Step 6: Final answer
    x = 162,351.34

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1.5x scale

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.