Home / 120,921.82-181,383.16-36,682.72

Finding the Fourth Proportional to 120,921.82, 181,383.16 and 36,682.72

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Solution

The fourth proportional to 120,921.82, 181,383.16 and 36,682.72 is: 55,024.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,921.82 : 181,383.16 = 36,682.72 : x
  2. Step 2: Convert to fraction form
    120,921.82/181,383.16 = 36,682.72/x
  3. Step 3: Cross multiply
    120,921.82x = 181,383.16 × 36,682.72
  4. Step 4: Simplify right side
    120,921.82x = 6,653,627,671.00
  5. Step 5: Solve for x
    x = 6,653,627,671.00/120,921.82
  6. Step 6: Final answer
    x = 55,024.21

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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.