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Finding the Fourth Proportional to 161,499.73, 242,249.67 and 72,649.45

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Solution

The fourth proportional to 161,499.73, 242,249.67 and 72,649.45 is: 108,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,499.73 : 242,249.67 = 72,649.45 : x
  2. Step 2: Convert to fraction form
    161,499.73/242,249.67 = 72,649.45/x
  3. Step 3: Cross multiply
    161,499.73x = 242,249.67 × 72,649.45
  4. Step 4: Simplify right side
    161,499.73x = 17,599,305,288.18
  5. Step 5: Solve for x
    x = 17,599,305,288.18/161,499.73
  6. Step 6: Final answer
    x = 108,974.21

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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.