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Finding the Fourth Proportional to 135,532.60, 203,493.30 and 105,983.80

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Solution

The fourth proportional to 135,532.60, 203,493.30 and 105,983.80 is: 159,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,532.60 : 203,493.30 = 105,983.80 : x
  2. Step 2: Convert to fraction form
    135,532.60/203,493.30 = 105,983.80/x
  3. Step 3: Cross multiply
    135,532.60x = 203,493.30 × 105,983.80
  4. Step 4: Simplify right side
    135,532.60x = 21,566,993,208.54
  5. Step 5: Solve for x
    x = 21,566,993,208.54/135,532.60
  6. Step 6: Final answer
    x = 159,127.72

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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.