Home / 135,943.80-203,721.30-100,125.60

Finding the Fourth Proportional to 135,943.80, 203,721.30 and 100,125.60

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Solution

The fourth proportional to 135,943.80, 203,721.30 and 100,125.60 is: 150,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,943.80 : 203,721.30 = 100,125.60 : x
  2. Step 2: Convert to fraction form
    135,943.80/203,721.30 = 100,125.60/x
  3. Step 3: Cross multiply
    135,943.80x = 203,721.30 × 100,125.60
  4. Step 4: Simplify right side
    135,943.80x = 20,397,717,395.28
  5. Step 5: Solve for x
    x = 20,397,717,395.28/135,943.80
  6. Step 6: Final answer
    x = 150,045.22

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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.