Home / 161,799.11-223,283.81-90,183.68

Finding the Fourth Proportional to 161,799.11, 223,283.81 and 90,183.68

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Solution

The fourth proportional to 161,799.11, 223,283.81 and 90,183.68 is: 124,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,799.11 : 223,283.81 = 90,183.68 : x
  2. Step 2: Convert to fraction form
    161,799.11/223,283.81 = 90,183.68/x
  3. Step 3: Cross multiply
    161,799.11x = 223,283.81 × 90,183.68
  4. Step 4: Simplify right side
    161,799.11x = 20,136,554,102.88
  5. Step 5: Solve for x
    x = 20,136,554,102.88/161,799.11
  6. Step 6: Final answer
    x = 124,454.05

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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.