Home / 146,383.38-202,009.20-79,315.38

Finding the Fourth Proportional to 146,383.38, 202,009.20 and 79,315.38

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Solution

The fourth proportional to 146,383.38, 202,009.20 and 79,315.38 is: 109,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,383.38 : 202,009.20 = 79,315.38 : x
  2. Step 2: Convert to fraction form
    146,383.38/202,009.20 = 79,315.38/x
  3. Step 3: Cross multiply
    146,383.38x = 202,009.20 × 79,315.38
  4. Step 4: Simplify right side
    146,383.38x = 16,022,435,451.45
  5. Step 5: Solve for x
    x = 16,022,435,451.45/146,383.38
  6. Step 6: Final answer
    x = 109,455.29

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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.