Home / 135,943.30-203,720.55-100,125.10

Finding the Fourth Proportional to 135,943.30, 203,720.55 and 100,125.10

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Solution

The fourth proportional to 135,943.30, 203,720.55 and 100,125.10 is: 150,044.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,943.30 : 203,720.55 = 100,125.10 : x
  2. Step 2: Convert to fraction form
    135,943.30/203,720.55 = 100,125.10/x
  3. Step 3: Cross multiply
    135,943.30x = 203,720.55 × 100,125.10
  4. Step 4: Simplify right side
    135,943.30x = 20,397,540,440.81
  5. Step 5: Solve for x
    x = 20,397,540,440.81/135,943.30
  6. Step 6: Final answer
    x = 150,044.47

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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.