Home / 126,787.75-190,110.48-86,851.87

Finding the Fourth Proportional to 126,787.75, 190,110.48 and 86,851.87

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Solution

The fourth proportional to 126,787.75, 190,110.48 and 86,851.87 is: 130,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,787.75 : 190,110.48 = 86,851.87 : x
  2. Step 2: Convert to fraction form
    126,787.75/190,110.48 = 86,851.87/x
  3. Step 3: Cross multiply
    126,787.75x = 190,110.48 × 86,851.87
  4. Step 4: Simplify right side
    126,787.75x = 16,511,450,694.60
  5. Step 5: Solve for x
    x = 16,511,450,694.60/126,787.75
  6. Step 6: Final answer
    x = 130,229.07

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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.