Home / 120,759.90-181,171.17-45,881.34

Finding the Fourth Proportional to 120,759.90, 181,171.17 and 45,881.34

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Solution

The fourth proportional to 120,759.90, 181,171.17 and 45,881.34 is: 68,833.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,759.90 : 181,171.17 = 45,881.34 : x
  2. Step 2: Convert to fraction form
    120,759.90/181,171.17 = 45,881.34/x
  3. Step 3: Cross multiply
    120,759.90x = 181,171.17 × 45,881.34
  4. Step 4: Simplify right side
    120,759.90x = 8,312,376,048.97
  5. Step 5: Solve for x
    x = 8,312,376,048.97/120,759.90
  6. Step 6: Final answer
    x = 68,833.91

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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.