Home / 131,686.20-197,237.70-108,358.20

Finding the Fourth Proportional to 131,686.20, 197,237.70 and 108,358.20

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Solution

The fourth proportional to 131,686.20, 197,237.70 and 108,358.20 is: 162,297.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,686.20 : 197,237.70 = 108,358.20 : x
  2. Step 2: Convert to fraction form
    131,686.20/197,237.70 = 108,358.20/x
  3. Step 3: Cross multiply
    131,686.20x = 197,237.70 × 108,358.20
  4. Step 4: Simplify right side
    131,686.20x = 21,372,322,144.14
  5. Step 5: Solve for x
    x = 21,372,322,144.14/131,686.20
  6. Step 6: Final answer
    x = 162,297.36

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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.