Home / 128,391.17-192,653.91-52,546.01

Finding the Fourth Proportional to 128,391.17, 192,653.91 and 52,546.01

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Solution

The fourth proportional to 128,391.17, 192,653.91 and 52,546.01 is: 78,846.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,391.17 : 192,653.91 = 52,546.01 : x
  2. Step 2: Convert to fraction form
    128,391.17/192,653.91 = 52,546.01/x
  3. Step 3: Cross multiply
    128,391.17x = 192,653.91 × 52,546.01
  4. Step 4: Simplify right side
    128,391.17x = 10,123,193,843.53
  5. Step 5: Solve for x
    x = 10,123,193,843.53/128,391.17
  6. Step 6: Final answer
    x = 78,846.50

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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.