Home / 217,511.55-326,394.36-91,141.02

Finding the Fourth Proportional to 217,511.55, 326,394.36 and 91,141.02

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Solution

The fourth proportional to 217,511.55, 326,394.36 and 91,141.02 is: 136,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,511.55 : 326,394.36 = 91,141.02 : x
  2. Step 2: Convert to fraction form
    217,511.55/326,394.36 = 91,141.02/x
  3. Step 3: Cross multiply
    217,511.55x = 326,394.36 × 91,141.02
  4. Step 4: Simplify right side
    217,511.55x = 29,747,914,892.65
  5. Step 5: Solve for x
    x = 29,747,914,892.65/217,511.55
  6. Step 6: Final answer
    x = 136,764.76

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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.