Home / 120,921.20-181,382.21-36,682.08

Finding the Fourth Proportional to 120,921.20, 181,382.21 and 36,682.08

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Solution

The fourth proportional to 120,921.20, 181,382.21 and 36,682.08 is: 55,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,921.20 : 181,382.21 = 36,682.08 : x
  2. Step 2: Convert to fraction form
    120,921.20/181,382.21 = 36,682.08/x
  3. Step 3: Cross multiply
    120,921.20x = 181,382.21 × 36,682.08
  4. Step 4: Simplify right side
    120,921.20x = 6,653,476,829.50
  5. Step 5: Solve for x
    x = 6,653,476,829.50/120,921.20
  6. Step 6: Final answer
    x = 55,023.25

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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.