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Finding the Fourth Proportional to 146,619, 202,335.30 and 79,551

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Solution

The fourth proportional to 146,619, 202,335.30 and 79,551 is: 109,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,619 : 202,335.30 = 79,551 : x
  2. Step 2: Convert to fraction form
    146,619/202,335.30 = 79,551/x
  3. Step 3: Cross multiply
    146,619x = 202,335.30 × 79,551
  4. Step 4: Simplify right side
    146,619x = 16,095,975,450.30
  5. Step 5: Solve for x
    x = 16,095,975,450.30/146,619
  6. Step 6: Final answer
    x = 109,780.97

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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.