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Finding the Fourth Proportional to 73,998.70, 110,998.05 and 72,249.10

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Solution

The fourth proportional to 73,998.70, 110,998.05 and 72,249.10 is: 108,373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,998.70 : 110,998.05 = 72,249.10 : x
  2. Step 2: Convert to fraction form
    73,998.70/110,998.05 = 72,249.10/x
  3. Step 3: Cross multiply
    73,998.70x = 110,998.05 × 72,249.10
  4. Step 4: Simplify right side
    73,998.70x = 8,019,509,214.26
  5. Step 5: Solve for x
    x = 8,019,509,214.26/73,998.70
  6. Step 6: Final answer
    x = 108,373.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.