Home / 135,561.10-203,340.47-40,790.79

Finding the Fourth Proportional to 135,561.10, 203,340.47 and 40,790.79

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Solution

The fourth proportional to 135,561.10, 203,340.47 and 40,790.79 is: 61,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,561.10 : 203,340.47 = 40,790.79 : x
  2. Step 2: Convert to fraction form
    135,561.10/203,340.47 = 40,790.79/x
  3. Step 3: Cross multiply
    135,561.10x = 203,340.47 × 40,790.79
  4. Step 4: Simplify right side
    135,561.10x = 8,294,418,410.27
  5. Step 5: Solve for x
    x = 8,294,418,410.27/135,561.10
  6. Step 6: Final answer
    x = 61,185.83

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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.