Home / 217,107.14-325,753.65-90,776.90

Finding the Fourth Proportional to 217,107.14, 325,753.65 and 90,776.90

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Solution

The fourth proportional to 217,107.14, 325,753.65 and 90,776.90 is: 136,204.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,107.14 : 325,753.65 = 90,776.90 : x
  2. Step 2: Convert to fraction form
    217,107.14/325,753.65 = 90,776.90/x
  3. Step 3: Cross multiply
    217,107.14x = 325,753.65 × 90,776.90
  4. Step 4: Simplify right side
    217,107.14x = 29,570,907,325.07
  5. Step 5: Solve for x
    x = 29,570,907,325.07/217,107.14
  6. Step 6: Final answer
    x = 136,204.22

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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.