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Finding the Fourth Proportional to 128,001.94, 192,002.91 and 34,507.69

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Solution

The fourth proportional to 128,001.94, 192,002.91 and 34,507.69 is: 51,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,001.94 : 192,002.91 = 34,507.69 : x
  2. Step 2: Convert to fraction form
    128,001.94/192,002.91 = 34,507.69/x
  3. Step 3: Cross multiply
    128,001.94x = 192,002.91 × 34,507.69
  4. Step 4: Simplify right side
    128,001.94x = 6,625,576,287.97
  5. Step 5: Solve for x
    x = 6,625,576,287.97/128,001.94
  6. Step 6: Final answer
    x = 51,761.53

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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.