Home / 104,110.76-156,230.39-40,919.78

Finding the Fourth Proportional to 104,110.76, 156,230.39 and 40,919.78

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Solution

The fourth proportional to 104,110.76, 156,230.39 and 40,919.78 is: 61,404.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,110.76 : 156,230.39 = 40,919.78 : x
  2. Step 2: Convert to fraction form
    104,110.76/156,230.39 = 40,919.78/x
  3. Step 3: Cross multiply
    104,110.76x = 156,230.39 × 40,919.78
  4. Step 4: Simplify right side
    104,110.76x = 6,392,913,374.09
  5. Step 5: Solve for x
    x = 6,392,913,374.09/104,110.76
  6. Step 6: Final answer
    x = 61,404.92

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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.