Home / 107,877.42-161,816.00-28,991.61

Finding the Fourth Proportional to 107,877.42, 161,816.00 and 28,991.61

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Solution

The fourth proportional to 107,877.42, 161,816.00 and 28,991.61 is: 43,487.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,877.42 : 161,816.00 = 28,991.61 : x
  2. Step 2: Convert to fraction form
    107,877.42/161,816.00 = 28,991.61/x
  3. Step 3: Cross multiply
    107,877.42x = 161,816.00 × 28,991.61
  4. Step 4: Simplify right side
    107,877.42x = 4,691,306,218.80
  5. Step 5: Solve for x
    x = 4,691,306,218.80/107,877.42
  6. Step 6: Final answer
    x = 43,487.38

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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.