Home / 135,403.89-203,138.28-41,909.64

Finding the Fourth Proportional to 135,403.89, 203,138.28 and 41,909.64

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Solution

The fourth proportional to 135,403.89, 203,138.28 and 41,909.64 is: 62,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,403.89 : 203,138.28 = 41,909.64 : x
  2. Step 2: Convert to fraction form
    135,403.89/203,138.28 = 41,909.64/x
  3. Step 3: Cross multiply
    135,403.89x = 203,138.28 × 41,909.64
  4. Step 4: Simplify right side
    135,403.89x = 8,513,452,185.02
  5. Step 5: Solve for x
    x = 8,513,452,185.02/135,403.89
  6. Step 6: Final answer
    x = 62,874.50

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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.