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Finding the Fourth Proportional to 102,550.40, 153,847.20 and 43,355.60

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Solution

The fourth proportional to 102,550.40, 153,847.20 and 43,355.60 is: 65,042.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,550.40 : 153,847.20 = 43,355.60 : x
  2. Step 2: Convert to fraction form
    102,550.40/153,847.20 = 43,355.60/x
  3. Step 3: Cross multiply
    102,550.40x = 153,847.20 × 43,355.60
  4. Step 4: Simplify right side
    102,550.40x = 6,670,137,664.32
  5. Step 5: Solve for x
    x = 6,670,137,664.32/102,550.40
  6. Step 6: Final answer
    x = 65,042.53

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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.