Home / 80,056.67-120,084.84-75,185.12

Finding the Fourth Proportional to 80,056.67, 120,084.84 and 75,185.12

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Solution

The fourth proportional to 80,056.67, 120,084.84 and 75,185.12 is: 112,777.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,056.67 : 120,084.84 = 75,185.12 : x
  2. Step 2: Convert to fraction form
    80,056.67/120,084.84 = 75,185.12/x
  3. Step 3: Cross multiply
    80,056.67x = 120,084.84 × 75,185.12
  4. Step 4: Simplify right side
    80,056.67x = 9,028,593,405.79
  5. Step 5: Solve for x
    x = 9,028,593,405.79/80,056.67
  6. Step 6: Final answer
    x = 112,777.54

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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.