Home / 80,150.88-120,111.30-45,016.59

Finding the Fourth Proportional to 80,150.88, 120,111.30 and 45,016.59

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Solution

The fourth proportional to 80,150.88, 120,111.30 and 45,016.59 is: 67,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,150.88 : 120,111.30 = 45,016.59 : x
  2. Step 2: Convert to fraction form
    80,150.88/120,111.30 = 45,016.59/x
  3. Step 3: Cross multiply
    80,150.88x = 120,111.30 × 45,016.59
  4. Step 4: Simplify right side
    80,150.88x = 5,407,001,146.47
  5. Step 5: Solve for x
    x = 5,407,001,146.47/80,150.88
  6. Step 6: Final answer
    x = 67,460.28

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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.