Home / 217,116.42-325,685.43-67,458.66

Finding the Fourth Proportional to 217,116.42, 325,685.43 and 67,458.66

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Solution

The fourth proportional to 217,116.42, 325,685.43 and 67,458.66 is: 101,191.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,116.42 : 325,685.43 = 67,458.66 : x
  2. Step 2: Convert to fraction form
    217,116.42/325,685.43 = 67,458.66/x
  3. Step 3: Cross multiply
    217,116.42x = 325,685.43 × 67,458.66
  4. Step 4: Simplify right side
    217,116.42x = 21,970,302,689.32
  5. Step 5: Solve for x
    x = 21,970,302,689.32/217,116.42
  6. Step 6: Final answer
    x = 101,191.35

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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.