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Finding the Fourth Proportional to 69,153.99, 103,738.38 and 19,234.23

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Solution

The fourth proportional to 69,153.99, 103,738.38 and 19,234.23 is: 28,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,153.99 : 103,738.38 = 19,234.23 : x
  2. Step 2: Convert to fraction form
    69,153.99/103,738.38 = 19,234.23/x
  3. Step 3: Cross multiply
    69,153.99x = 103,738.38 × 19,234.23
  4. Step 4: Simplify right side
    69,153.99x = 1,995,327,860.75
  5. Step 5: Solve for x
    x = 1,995,327,860.75/69,153.99
  6. Step 6: Final answer
    x = 28,853.40

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1.5x scale

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.