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Finding the Fourth Proportional to 146,877, 202,690.80 and 79,809

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Solution

The fourth proportional to 146,877, 202,690.80 and 79,809 is: 110,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,877 : 202,690.80 = 79,809 : x
  2. Step 2: Convert to fraction form
    146,877/202,690.80 = 79,809/x
  3. Step 3: Cross multiply
    146,877x = 202,690.80 × 79,809
  4. Step 4: Simplify right side
    146,877x = 16,176,550,057.20
  5. Step 5: Solve for x
    x = 16,176,550,057.20/146,877
  6. Step 6: Final answer
    x = 110,136.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.