Home / 135,968.91-203,932.31-69,458.19

Finding the Fourth Proportional to 135,968.91, 203,932.31 and 69,458.19

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Solution

The fourth proportional to 135,968.91, 203,932.31 and 69,458.19 is: 104,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,968.91 : 203,932.31 = 69,458.19 : x
  2. Step 2: Convert to fraction form
    135,968.91/203,932.31 = 69,458.19/x
  3. Step 3: Cross multiply
    135,968.91x = 203,932.31 × 69,458.19
  4. Step 4: Simplify right side
    135,968.91x = 14,164,768,787.83
  5. Step 5: Solve for x
    x = 14,164,768,787.83/135,968.91
  6. Step 6: Final answer
    x = 104,176.53

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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.