Home / 217,042.80-325,561.15-131,673.99

Finding the Fourth Proportional to 217,042.80, 325,561.15 and 131,673.99

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Solution

The fourth proportional to 217,042.80, 325,561.15 and 131,673.99 is: 197,509.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,042.80 : 325,561.15 = 131,673.99 : x
  2. Step 2: Convert to fraction form
    217,042.80/325,561.15 = 131,673.99/x
  3. Step 3: Cross multiply
    217,042.80x = 325,561.15 × 131,673.99
  4. Step 4: Simplify right side
    217,042.80x = 42,867,935,609.49
  5. Step 5: Solve for x
    x = 42,867,935,609.49/217,042.80
  6. Step 6: Final answer
    x = 197,509.13

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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.