Home / 126,787.07-190,136.80-36,805.38

Finding the Fourth Proportional to 126,787.07, 190,136.80 and 36,805.38

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Solution

The fourth proportional to 126,787.07, 190,136.80 and 36,805.38 is: 55,195.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,787.07 : 190,136.80 = 36,805.38 : x
  2. Step 2: Convert to fraction form
    126,787.07/190,136.80 = 36,805.38/x
  3. Step 3: Cross multiply
    126,787.07x = 190,136.80 × 36,805.38
  4. Step 4: Simplify right side
    126,787.07x = 6,998,057,175.98
  5. Step 5: Solve for x
    x = 6,998,057,175.98/126,787.07
  6. Step 6: Final answer
    x = 55,195.35

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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.