Home / 115,916.80-173,875.20-108,083.20

Finding the Fourth Proportional to 115,916.80, 173,875.20 and 108,083.20

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Solution

The fourth proportional to 115,916.80, 173,875.20 and 108,083.20 is: 162,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,916.80 : 173,875.20 = 108,083.20 : x
  2. Step 2: Convert to fraction form
    115,916.80/173,875.20 = 108,083.20/x
  3. Step 3: Cross multiply
    115,916.80x = 173,875.20 × 108,083.20
  4. Step 4: Simplify right side
    115,916.80x = 18,792,988,016.64
  5. Step 5: Solve for x
    x = 18,792,988,016.64/115,916.80
  6. Step 6: Final answer
    x = 162,124.80

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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.