Home / 128,563.16-192,772.52-88,082.36

Finding the Fourth Proportional to 128,563.16, 192,772.52 and 88,082.36

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Solution

The fourth proportional to 128,563.16, 192,772.52 and 88,082.36 is: 132,074.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,563.16 : 192,772.52 = 88,082.36 : x
  2. Step 2: Convert to fraction form
    128,563.16/192,772.52 = 88,082.36/x
  3. Step 3: Cross multiply
    128,563.16x = 192,772.52 × 88,082.36
  4. Step 4: Simplify right side
    128,563.16x = 16,979,858,504.75
  5. Step 5: Solve for x
    x = 16,979,858,504.75/128,563.16
  6. Step 6: Final answer
    x = 132,074.06

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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.