Home / 120,737.20-181,278.60-68,249.20

Finding the Fourth Proportional to 120,737.20, 181,278.60 and 68,249.20

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Solution

The fourth proportional to 120,737.20, 181,278.60 and 68,249.20 is: 102,471.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,737.20 : 181,278.60 = 68,249.20 : x
  2. Step 2: Convert to fraction form
    120,737.20/181,278.60 = 68,249.20/x
  3. Step 3: Cross multiply
    120,737.20x = 181,278.60 × 68,249.20
  4. Step 4: Simplify right side
    120,737.20x = 12,372,119,427.12
  5. Step 5: Solve for x
    x = 12,372,119,427.12/120,737.20
  6. Step 6: Final answer
    x = 102,471.48

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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.