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Finding the Fourth Proportional to 109,179.78, 163,769.66 and 62,399.84

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Solution

The fourth proportional to 109,179.78, 163,769.66 and 62,399.84 is: 93,599.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,179.78 : 163,769.66 = 62,399.84 : x
  2. Step 2: Convert to fraction form
    109,179.78/163,769.66 = 62,399.84/x
  3. Step 3: Cross multiply
    109,179.78x = 163,769.66 × 62,399.84
  4. Step 4: Simplify right side
    109,179.78x = 10,219,200,580.85
  5. Step 5: Solve for x
    x = 10,219,200,580.85/109,179.78
  6. Step 6: Final answer
    x = 93,599.75

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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.