Home / 149,777.49-206,668.44-88,515.15

Finding the Fourth Proportional to 149,777.49, 206,668.44 and 88,515.15

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Solution

The fourth proportional to 149,777.49, 206,668.44 and 88,515.15 is: 122,136.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,777.49 : 206,668.44 = 88,515.15 : x
  2. Step 2: Convert to fraction form
    149,777.49/206,668.44 = 88,515.15/x
  3. Step 3: Cross multiply
    149,777.49x = 206,668.44 × 88,515.15
  4. Step 4: Simplify right side
    149,777.49x = 18,293,287,966.87
  5. Step 5: Solve for x
    x = 18,293,287,966.87/149,777.49
  6. Step 6: Final answer
    x = 122,136.43

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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.