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Finding the Fourth Proportional to 146,726, 202,481.88 and 79,658

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Solution

The fourth proportional to 146,726, 202,481.88 and 79,658 is: 109,928.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,726 : 202,481.88 = 79,658 : x
  2. Step 2: Convert to fraction form
    146,726/202,481.88 = 79,658/x
  3. Step 3: Cross multiply
    146,726x = 202,481.88 × 79,658
  4. Step 4: Simplify right side
    146,726x = 16,129,301,597.04
  5. Step 5: Solve for x
    x = 16,129,301,597.04/146,726
  6. Step 6: Final answer
    x = 109,928.04

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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.