Home / 217,655.12-326,022.72-137,651.92

Finding the Fourth Proportional to 217,655.12, 326,022.72 and 137,651.92

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Solution

The fourth proportional to 217,655.12, 326,022.72 and 137,651.92 is: 206,187.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,655.12 : 326,022.72 = 137,651.92 : x
  2. Step 2: Convert to fraction form
    217,655.12/326,022.72 = 137,651.92/x
  3. Step 3: Cross multiply
    217,655.12x = 326,022.72 × 137,651.92
  4. Step 4: Simplify right side
    217,655.12x = 44,877,654,648.54
  5. Step 5: Solve for x
    x = 44,877,654,648.54/217,655.12
  6. Step 6: Final answer
    x = 206,187.00

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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.