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Finding the Fourth Proportional to 146,858, 202,664.06 and 79,790

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Solution

The fourth proportional to 146,858, 202,664.06 and 79,790 is: 110,110.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,858 : 202,664.06 = 79,790 : x
  2. Step 2: Convert to fraction form
    146,858/202,664.06 = 79,790/x
  3. Step 3: Cross multiply
    146,858x = 202,664.06 × 79,790
  4. Step 4: Simplify right side
    146,858x = 16,170,565,347.40
  5. Step 5: Solve for x
    x = 16,170,565,347.40/146,858
  6. Step 6: Final answer
    x = 110,110.21

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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.