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Finding the Fourth Proportional to 104,568, 156,763.80 and 45,359.10

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Solution

The fourth proportional to 104,568, 156,763.80 and 45,359.10 is: 68,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,568 : 156,763.80 = 45,359.10 : x
  2. Step 2: Convert to fraction form
    104,568/156,763.80 = 45,359.10/x
  3. Step 3: Cross multiply
    104,568x = 156,763.80 × 45,359.10
  4. Step 4: Simplify right side
    104,568x = 7,110,664,880.58
  5. Step 5: Solve for x
    x = 7,110,664,880.58/104,568
  6. Step 6: Final answer
    x = 68,000.39

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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.