Home / 120,846.20-181,269.30-54,318.20

Finding the Fourth Proportional to 120,846.20, 181,269.30 and 54,318.20

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Solution

The fourth proportional to 120,846.20, 181,269.30 and 54,318.20 is: 81,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,846.20 : 181,269.30 = 54,318.20 : x
  2. Step 2: Convert to fraction form
    120,846.20/181,269.30 = 54,318.20/x
  3. Step 3: Cross multiply
    120,846.20x = 181,269.30 × 54,318.20
  4. Step 4: Simplify right side
    120,846.20x = 9,846,222,091.26
  5. Step 5: Solve for x
    x = 9,846,222,091.26/120,846.20
  6. Step 6: Final answer
    x = 81,477.30

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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.