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Finding the Fourth Proportional to 67,165.23, 100,713.17 and 19,774.19

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Solution

The fourth proportional to 67,165.23, 100,713.17 and 19,774.19 is: 29,651.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,165.23 : 100,713.17 = 19,774.19 : x
  2. Step 2: Convert to fraction form
    67,165.23/100,713.17 = 19,774.19/x
  3. Step 3: Cross multiply
    67,165.23x = 100,713.17 × 19,774.19
  4. Step 4: Simplify right side
    67,165.23x = 1,991,521,660.30
  5. Step 5: Solve for x
    x = 1,991,521,660.30/67,165.23
  6. Step 6: Final answer
    x = 29,651.08

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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.