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Finding the Fourth Proportional to 68,164.80, 102,110.96 and 54,148.56

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Solution

The fourth proportional to 68,164.80, 102,110.96 and 54,148.56 is: 81,114.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,164.80 : 102,110.96 = 54,148.56 : x
  2. Step 2: Convert to fraction form
    68,164.80/102,110.96 = 54,148.56/x
  3. Step 3: Cross multiply
    68,164.80x = 102,110.96 × 54,148.56
  4. Step 4: Simplify right side
    68,164.80x = 5,529,161,444.22
  5. Step 5: Solve for x
    x = 5,529,161,444.22/68,164.80
  6. Step 6: Final answer
    x = 81,114.61

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1.5x scale

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.