Home / 128,104.46-192,052.85-53,280.60

Finding the Fourth Proportional to 128,104.46, 192,052.85 and 53,280.60

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Solution

The fourth proportional to 128,104.46, 192,052.85 and 53,280.60 is: 79,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,104.46 : 192,052.85 = 53,280.60 : x
  2. Step 2: Convert to fraction form
    128,104.46/192,052.85 = 53,280.60/x
  3. Step 3: Cross multiply
    128,104.46x = 192,052.85 × 53,280.60
  4. Step 4: Simplify right side
    128,104.46x = 10,232,690,813.31
  5. Step 5: Solve for x
    x = 10,232,690,813.31/128,104.46
  6. Step 6: Final answer
    x = 79,877.71

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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.