Home / 161,857.87-223,361.42-90,236.05

Finding the Fourth Proportional to 161,857.87, 223,361.42 and 90,236.05

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Solution

The fourth proportional to 161,857.87, 223,361.42 and 90,236.05 is: 124,524.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,857.87 : 223,361.42 = 90,236.05 : x
  2. Step 2: Convert to fraction form
    161,857.87/223,361.42 = 90,236.05/x
  3. Step 3: Cross multiply
    161,857.87x = 223,361.42 × 90,236.05
  4. Step 4: Simplify right side
    161,857.87x = 20,155,251,253.61
  5. Step 5: Solve for x
    x = 20,155,251,253.61/161,857.87
  6. Step 6: Final answer
    x = 124,524.38

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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.