Home / 128,082.24-192,123.06-71,192.30

Finding the Fourth Proportional to 128,082.24, 192,123.06 and 71,192.30

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Solution

The fourth proportional to 128,082.24, 192,123.06 and 71,192.30 is: 106,788.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,082.24 : 192,123.06 = 71,192.30 : x
  2. Step 2: Convert to fraction form
    128,082.24/192,123.06 = 71,192.30/x
  3. Step 3: Cross multiply
    128,082.24x = 192,123.06 × 71,192.30
  4. Step 4: Simplify right side
    128,082.24x = 13,677,682,524.44
  5. Step 5: Solve for x
    x = 13,677,682,524.44/128,082.24
  6. Step 6: Final answer
    x = 106,788.28

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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.