Home / 80,096.96-120,145.44-30,188.25

Finding the Fourth Proportional to 80,096.96, 120,145.44 and 30,188.25

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Solution

The fourth proportional to 80,096.96, 120,145.44 and 30,188.25 is: 45,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,096.96 : 120,145.44 = 30,188.25 : x
  2. Step 2: Convert to fraction form
    80,096.96/120,145.44 = 30,188.25/x
  3. Step 3: Cross multiply
    80,096.96x = 120,145.44 × 30,188.25
  4. Step 4: Simplify right side
    80,096.96x = 3,626,980,579.08
  5. Step 5: Solve for x
    x = 3,626,980,579.08/80,096.96
  6. Step 6: Final answer
    x = 45,282.38

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1.5x scale

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.