Home / 68,919.86-103,314.18-22,139.94

Finding the Fourth Proportional to 68,919.86, 103,314.18 and 22,139.94

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Solution

The fourth proportional to 68,919.86, 103,314.18 and 22,139.94 is: 33,188.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,919.86 : 103,314.18 = 22,139.94 : x
  2. Step 2: Convert to fraction form
    68,919.86/103,314.18 = 22,139.94/x
  3. Step 3: Cross multiply
    68,919.86x = 103,314.18 × 22,139.94
  4. Step 4: Simplify right side
    68,919.86x = 2,287,369,746.35
  5. Step 5: Solve for x
    x = 2,287,369,746.35/68,919.86
  6. Step 6: Final answer
    x = 33,188.83

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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.