Home / 120,724.20-181,259.10-68,236.20

Finding the Fourth Proportional to 120,724.20, 181,259.10 and 68,236.20

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Solution

The fourth proportional to 120,724.20, 181,259.10 and 68,236.20 is: 102,451.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,724.20 : 181,259.10 = 68,236.20 : x
  2. Step 2: Convert to fraction form
    120,724.20/181,259.10 = 68,236.20/x
  3. Step 3: Cross multiply
    120,724.20x = 181,259.10 × 68,236.20
  4. Step 4: Simplify right side
    120,724.20x = 12,368,432,199.42
  5. Step 5: Solve for x
    x = 12,368,432,199.42/120,724.20
  6. Step 6: Final answer
    x = 102,451.97

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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.