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Finding the Fourth Proportional to 103,682.15, 155,523.23 and 51,194.15

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Solution

The fourth proportional to 103,682.15, 155,523.23 and 51,194.15 is: 76,791.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,682.15 : 155,523.23 = 51,194.15 : x
  2. Step 2: Convert to fraction form
    103,682.15/155,523.23 = 51,194.15/x
  3. Step 3: Cross multiply
    103,682.15x = 155,523.23 × 51,194.15
  4. Step 4: Simplify right side
    103,682.15x = 7,961,879,565.10
  5. Step 5: Solve for x
    x = 7,961,879,565.10/103,682.15
  6. Step 6: Final answer
    x = 76,791.23

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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.