Home / 80,133.75-120,200.67-30,225.06

Finding the Fourth Proportional to 80,133.75, 120,200.67 and 30,225.06

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Solution

The fourth proportional to 80,133.75, 120,200.67 and 30,225.06 is: 45,337.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,133.75 : 120,200.67 = 30,225.06 : x
  2. Step 2: Convert to fraction form
    80,133.75/120,200.67 = 30,225.06/x
  3. Step 3: Cross multiply
    80,133.75x = 120,200.67 × 30,225.06
  4. Step 4: Simplify right side
    80,133.75x = 3,633,072,462.79
  5. Step 5: Solve for x
    x = 3,633,072,462.79/80,133.75
  6. Step 6: Final answer
    x = 45,337.61

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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.