Home / 128,068.24-192,105.72-34,573.68

Finding the Fourth Proportional to 128,068.24, 192,105.72 and 34,573.68

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Solution

The fourth proportional to 128,068.24, 192,105.72 and 34,573.68 is: 51,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,068.24 : 192,105.72 = 34,573.68 : x
  2. Step 2: Convert to fraction form
    128,068.24/192,105.72 = 34,573.68/x
  3. Step 3: Cross multiply
    128,068.24x = 192,105.72 × 34,573.68
  4. Step 4: Simplify right side
    128,068.24x = 6,641,801,689.45
  5. Step 5: Solve for x
    x = 6,641,801,689.45/128,068.24
  6. Step 6: Final answer
    x = 51,861.43

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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.