Home / 128,594.43-192,821.17-39,823.29

Finding the Fourth Proportional to 128,594.43, 192,821.17 and 39,823.29

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Solution

The fourth proportional to 128,594.43, 192,821.17 and 39,823.29 is: 59,713.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,594.43 : 192,821.17 = 39,823.29 : x
  2. Step 2: Convert to fraction form
    128,594.43/192,821.17 = 39,823.29/x
  3. Step 3: Cross multiply
    128,594.43x = 192,821.17 × 39,823.29
  4. Step 4: Simplify right side
    128,594.43x = 7,678,773,371.05
  5. Step 5: Solve for x
    x = 7,678,773,371.05/128,594.43
  6. Step 6: Final answer
    x = 59,713.11

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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.