Home / 128,247.46-192,371.19-34,750.78

Finding the Fourth Proportional to 128,247.46, 192,371.19 and 34,750.78

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Solution

The fourth proportional to 128,247.46, 192,371.19 and 34,750.78 is: 52,126.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,247.46 : 192,371.19 = 34,750.78 : x
  2. Step 2: Convert to fraction form
    128,247.46/192,371.19 = 34,750.78/x
  3. Step 3: Cross multiply
    128,247.46x = 192,371.19 × 34,750.78
  4. Step 4: Simplify right side
    128,247.46x = 6,685,048,902.03
  5. Step 5: Solve for x
    x = 6,685,048,902.03/128,247.46
  6. Step 6: Final answer
    x = 52,126.17

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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.