Home / 80,109.93-120,173.13-30,232.02

Finding the Fourth Proportional to 80,109.93, 120,173.13 and 30,232.02

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Solution

The fourth proportional to 80,109.93, 120,173.13 and 30,232.02 is: 45,351.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,109.93 : 120,173.13 = 30,232.02 : x
  2. Step 2: Convert to fraction form
    80,109.93/120,173.13 = 30,232.02/x
  3. Step 3: Cross multiply
    80,109.93x = 120,173.13 × 30,232.02
  4. Step 4: Simplify right side
    80,109.93x = 3,633,076,469.62
  5. Step 5: Solve for x
    x = 3,633,076,469.62/80,109.93
  6. Step 6: Final answer
    x = 45,351.14

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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.