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Finding the Fourth Proportional to 128,351.01, 192,366 and 61,773.33

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Solution

The fourth proportional to 128,351.01, 192,366 and 61,773.33 is: 92,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,351.01 : 192,366 = 61,773.33 : x
  2. Step 2: Convert to fraction form
    128,351.01/192,366 = 61,773.33/x
  3. Step 3: Cross multiply
    128,351.01x = 192,366 × 61,773.33
  4. Step 4: Simplify right side
    128,351.01x = 11,883,088,398.78
  5. Step 5: Solve for x
    x = 11,883,088,398.78/128,351.01
  6. Step 6: Final answer
    x = 92,582.74

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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.