Home / 146,789.80-202,568.77-79,721.80

Finding the Fourth Proportional to 146,789.80, 202,568.77 and 79,721.80

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Solution

The fourth proportional to 146,789.80, 202,568.77 and 79,721.80 is: 110,015.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,789.80 : 202,568.77 = 79,721.80 : x
  2. Step 2: Convert to fraction form
    146,789.80/202,568.77 = 79,721.80/x
  3. Step 3: Cross multiply
    146,789.80x = 202,568.77 × 79,721.80
  4. Step 4: Simplify right side
    146,789.80x = 16,149,146,968.19
  5. Step 5: Solve for x
    x = 16,149,146,968.19/146,789.80
  6. Step 6: Final answer
    x = 110,015.46

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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.