Home / 73,540.20-109,478.67-73,102.80

Finding the Fourth Proportional to 73,540.20, 109,478.67 and 73,102.80

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Solution

The fourth proportional to 73,540.20, 109,478.67 and 73,102.80 is: 108,827.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,540.20 : 109,478.67 = 73,102.80 : x
  2. Step 2: Convert to fraction form
    73,540.20/109,478.67 = 73,102.80/x
  3. Step 3: Cross multiply
    73,540.20x = 109,478.67 × 73,102.80
  4. Step 4: Simplify right side
    73,540.20x = 8,003,197,317.28
  5. Step 5: Solve for x
    x = 8,003,197,317.28/73,540.20
  6. Step 6: Final answer
    x = 108,827.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.