Home / 173,819.12-260,728.68-80,312.72

Finding the Fourth Proportional to 173,819.12, 260,728.68 and 80,312.72

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Solution

The fourth proportional to 173,819.12, 260,728.68 and 80,312.72 is: 120,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,819.12 : 260,728.68 = 80,312.72 : x
  2. Step 2: Convert to fraction form
    173,819.12/260,728.68 = 80,312.72/x
  3. Step 3: Cross multiply
    173,819.12x = 260,728.68 × 80,312.72
  4. Step 4: Simplify right side
    173,819.12x = 20,939,829,472.81
  5. Step 5: Solve for x
    x = 20,939,829,472.81/173,819.12
  6. Step 6: Final answer
    x = 120,469.08

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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.