Home / 192,861.18-289,337.96-80,478.88

Finding the Fourth Proportional to 192,861.18, 289,337.96 and 80,478.88

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Solution

The fourth proportional to 192,861.18, 289,337.96 and 80,478.88 is: 120,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,861.18 : 289,337.96 = 80,478.88 : x
  2. Step 2: Convert to fraction form
    192,861.18/289,337.96 = 80,478.88/x
  3. Step 3: Cross multiply
    192,861.18x = 289,337.96 × 80,478.88
  4. Step 4: Simplify right side
    192,861.18x = 23,285,595,072.46
  5. Step 5: Solve for x
    x = 23,285,595,072.46/192,861.18
  6. Step 6: Final answer
    x = 120,737.60

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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.