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Finding the Fourth Proportional to 146,535.78, 202,219.49 and 79,467.78

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Solution

The fourth proportional to 146,535.78, 202,219.49 and 79,467.78 is: 109,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,535.78 : 202,219.49 = 79,467.78 : x
  2. Step 2: Convert to fraction form
    146,535.78/202,219.49 = 79,467.78/x
  3. Step 3: Cross multiply
    146,535.78x = 202,219.49 × 79,467.78
  4. Step 4: Simplify right side
    146,535.78x = 16,069,933,943.03
  5. Step 5: Solve for x
    x = 16,069,933,943.03/146,535.78
  6. Step 6: Final answer
    x = 109,665.60

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1.5x scale

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.