Home / 106,365.40-159,375.30-66,851.80

Finding the Fourth Proportional to 106,365.40, 159,375.30 and 66,851.80

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Solution

The fourth proportional to 106,365.40, 159,375.30 and 66,851.80 is: 100,169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,365.40 : 159,375.30 = 66,851.80 : x
  2. Step 2: Convert to fraction form
    106,365.40/159,375.30 = 66,851.80/x
  3. Step 3: Cross multiply
    106,365.40x = 159,375.30 × 66,851.80
  4. Step 4: Simplify right side
    106,365.40x = 10,654,525,680.54
  5. Step 5: Solve for x
    x = 10,654,525,680.54/106,365.40
  6. Step 6: Final answer
    x = 100,169.09

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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.