Home / 135,390.12-203,113.20-40,616.47

Finding the Fourth Proportional to 135,390.12, 203,113.20 and 40,616.47

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Solution

The fourth proportional to 135,390.12, 203,113.20 and 40,616.47 is: 60,933.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,390.12 : 203,113.20 = 40,616.47 : x
  2. Step 2: Convert to fraction form
    135,390.12/203,113.20 = 40,616.47/x
  3. Step 3: Cross multiply
    135,390.12x = 203,113.20 × 40,616.47
  4. Step 4: Simplify right side
    135,390.12x = 8,249,741,194.40
  5. Step 5: Solve for x
    x = 8,249,741,194.40/135,390.12
  6. Step 6: Final answer
    x = 60,933.11

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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.