Home / 146,515.28-202,191.20-79,447.28

Finding the Fourth Proportional to 146,515.28, 202,191.20 and 79,447.28

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Solution

The fourth proportional to 146,515.28, 202,191.20 and 79,447.28 is: 109,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,515.28 : 202,191.20 = 79,447.28 : x
  2. Step 2: Convert to fraction form
    146,515.28/202,191.20 = 79,447.28/x
  3. Step 3: Cross multiply
    146,515.28x = 202,191.20 × 79,447.28
  4. Step 4: Simplify right side
    146,515.28x = 16,063,540,879.94
  5. Step 5: Solve for x
    x = 16,063,540,879.94/146,515.28
  6. Step 6: Final answer
    x = 109,637.31

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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.