Home / 136,230.92-187,982.16-75,787.28

Finding the Fourth Proportional to 136,230.92, 187,982.16 and 75,787.28

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Solution

The fourth proportional to 136,230.92, 187,982.16 and 75,787.28 is: 104,577.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,230.92 : 187,982.16 = 75,787.28 : x
  2. Step 2: Convert to fraction form
    136,230.92/187,982.16 = 75,787.28/x
  3. Step 3: Cross multiply
    136,230.92x = 187,982.16 × 75,787.28
  4. Step 4: Simplify right side
    136,230.92x = 14,246,656,594.92
  5. Step 5: Solve for x
    x = 14,246,656,594.92/136,230.92
  6. Step 6: Final answer
    x = 104,577.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.