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Finding the Fourth Proportional to 155,496.60, 233,244.90 and 76,764.60

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Solution

The fourth proportional to 155,496.60, 233,244.90 and 76,764.60 is: 115,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,496.60 : 233,244.90 = 76,764.60 : x
  2. Step 2: Convert to fraction form
    155,496.60/233,244.90 = 76,764.60/x
  3. Step 3: Cross multiply
    155,496.60x = 233,244.90 × 76,764.60
  4. Step 4: Simplify right side
    155,496.60x = 17,904,951,450.54
  5. Step 5: Solve for x
    x = 17,904,951,450.54/155,496.60
  6. Step 6: Final answer
    x = 115,146.90

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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.