Home / 73,541.20-109,480.16-73,103.80

Finding the Fourth Proportional to 73,541.20, 109,480.16 and 73,103.80

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Solution

The fourth proportional to 73,541.20, 109,480.16 and 73,103.80 is: 108,829.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,541.20 : 109,480.16 = 73,103.80 : x
  2. Step 2: Convert to fraction form
    73,541.20/109,480.16 = 73,103.80/x
  3. Step 3: Cross multiply
    73,541.20x = 109,480.16 × 73,103.80
  4. Step 4: Simplify right side
    73,541.20x = 8,003,415,720.61
  5. Step 5: Solve for x
    x = 8,003,415,720.61/73,541.20
  6. Step 6: Final answer
    x = 108,829.01

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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.