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Finding the Fourth Proportional to 195,687.72, 293,454.99 and 69,279.12

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Solution

The fourth proportional to 195,687.72, 293,454.99 and 69,279.12 is: 103,891.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,687.72 : 293,454.99 = 69,279.12 : x
  2. Step 2: Convert to fraction form
    195,687.72/293,454.99 = 69,279.12/x
  3. Step 3: Cross multiply
    195,687.72x = 293,454.99 × 69,279.12
  4. Step 4: Simplify right side
    195,687.72x = 20,330,303,466.81
  5. Step 5: Solve for x
    x = 20,330,303,466.81/195,687.72
  6. Step 6: Final answer
    x = 103,891.56

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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.