Home / 266,120.90-399,245.14-88,629.45

Finding the Fourth Proportional to 266,120.90, 399,245.14 and 88,629.45

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Solution

The fourth proportional to 266,120.90, 399,245.14 and 88,629.45 is: 132,965.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,120.90 : 399,245.14 = 88,629.45 : x
  2. Step 2: Convert to fraction form
    266,120.90/399,245.14 = 88,629.45/x
  3. Step 3: Cross multiply
    266,120.90x = 399,245.14 × 88,629.45
  4. Step 4: Simplify right side
    266,120.90x = 35,384,877,173.37
  5. Step 5: Solve for x
    x = 35,384,877,173.37/266,120.90
  6. Step 6: Final answer
    x = 132,965.42

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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.