Home / 87,787.94-121,231.03-83,006.06

Finding the Fourth Proportional to 87,787.94, 121,231.03 and 83,006.06

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Solution

The fourth proportional to 87,787.94, 121,231.03 and 83,006.06 is: 114,627.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,787.94 : 121,231.03 = 83,006.06 : x
  2. Step 2: Convert to fraction form
    87,787.94/121,231.03 = 83,006.06/x
  3. Step 3: Cross multiply
    87,787.94x = 121,231.03 × 83,006.06
  4. Step 4: Simplify right side
    87,787.94x = 10,062,909,336.37
  5. Step 5: Solve for x
    x = 10,062,909,336.37/87,787.94
  6. Step 6: Final answer
    x = 114,627.48

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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.