Home / 192,861.02-289,337.72-80,478.72

Finding the Fourth Proportional to 192,861.02, 289,337.72 and 80,478.72

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Solution

The fourth proportional to 192,861.02, 289,337.72 and 80,478.72 is: 120,737.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,861.02 : 289,337.72 = 80,478.72 : x
  2. Step 2: Convert to fraction form
    192,861.02/289,337.72 = 80,478.72/x
  3. Step 3: Cross multiply
    192,861.02x = 289,337.72 × 80,478.72
  4. Step 4: Simplify right side
    192,861.02x = 23,285,530,639.53
  5. Step 5: Solve for x
    x = 23,285,530,639.53/192,861.02
  6. Step 6: Final answer
    x = 120,737.36

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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.