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Finding the Fourth Proportional to 146,531.28, 202,213.28 and 79,463.28

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Solution

The fourth proportional to 146,531.28, 202,213.28 and 79,463.28 is: 109,659.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,531.28 : 202,213.28 = 79,463.28 : x
  2. Step 2: Convert to fraction form
    146,531.28/202,213.28 = 79,463.28/x
  3. Step 3: Cross multiply
    146,531.28x = 202,213.28 × 79,463.28
  4. Step 4: Simplify right side
    146,531.28x = 16,068,530,488.36
  5. Step 5: Solve for x
    x = 16,068,530,488.36/146,531.28
  6. Step 6: Final answer
    x = 109,659.39

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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.