Home / 131,921.80-197,997.90-105,560.20

Finding the Fourth Proportional to 131,921.80, 197,997.90 and 105,560.20

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Solution

The fourth proportional to 131,921.80, 197,997.90 and 105,560.20 is: 158,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,921.80 : 197,997.90 = 105,560.20 : x
  2. Step 2: Convert to fraction form
    131,921.80/197,997.90 = 105,560.20/x
  3. Step 3: Cross multiply
    131,921.80x = 197,997.90 × 105,560.20
  4. Step 4: Simplify right side
    131,921.80x = 20,900,697,923.58
  5. Step 5: Solve for x
    x = 20,900,697,923.58/131,921.80
  6. Step 6: Final answer
    x = 158,432.48

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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.