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Finding the Fourth Proportional to 146,873, 202,685.30 and 79,805

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Solution

The fourth proportional to 146,873, 202,685.30 and 79,805 is: 110,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,873 : 202,685.30 = 79,805 : x
  2. Step 2: Convert to fraction form
    146,873/202,685.30 = 79,805/x
  3. Step 3: Cross multiply
    146,873x = 202,685.30 × 79,805
  4. Step 4: Simplify right side
    146,873x = 16,175,300,366.50
  5. Step 5: Solve for x
    x = 16,175,300,366.50/146,873
  6. Step 6: Final answer
    x = 110,131.20

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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.