Home / 204,136.40-306,058.80-91,724.60

Finding the Fourth Proportional to 204,136.40, 306,058.80 and 91,724.60

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Solution

The fourth proportional to 204,136.40, 306,058.80 and 91,724.60 is: 137,521.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,136.40 : 306,058.80 = 91,724.60 : x
  2. Step 2: Convert to fraction form
    204,136.40/306,058.80 = 91,724.60/x
  3. Step 3: Cross multiply
    204,136.40x = 306,058.80 × 91,724.60
  4. Step 4: Simplify right side
    204,136.40x = 28,073,121,006.48
  5. Step 5: Solve for x
    x = 28,073,121,006.48/204,136.40
  6. Step 6: Final answer
    x = 137,521.39

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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.