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Finding the Fourth Proportional to 128,060.91, 192,113.91 and 43,801.29

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Solution

The fourth proportional to 128,060.91, 192,113.91 and 43,801.29 is: 65,709.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,060.91 : 192,113.91 = 43,801.29 : x
  2. Step 2: Convert to fraction form
    128,060.91/192,113.91 = 43,801.29/x
  3. Step 3: Cross multiply
    128,060.91x = 192,113.91 × 43,801.29
  4. Step 4: Simplify right side
    128,060.91x = 8,414,837,084.94
  5. Step 5: Solve for x
    x = 8,414,837,084.94/128,060.91
  6. Step 6: Final answer
    x = 65,709.65

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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.