Home / 120,872.57-181,308.85-45,975.42

Finding the Fourth Proportional to 120,872.57, 181,308.85 and 45,975.42

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Solution

The fourth proportional to 120,872.57, 181,308.85 and 45,975.42 is: 68,963.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,872.57 : 181,308.85 = 45,975.42 : x
  2. Step 2: Convert to fraction form
    120,872.57/181,308.85 = 45,975.42/x
  3. Step 3: Cross multiply
    120,872.57x = 181,308.85 × 45,975.42
  4. Step 4: Simplify right side
    120,872.57x = 8,335,749,392.05
  5. Step 5: Solve for x
    x = 8,335,749,392.05/120,872.57
  6. Step 6: Final answer
    x = 68,963.12

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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.