Home / 161,823.05-223,311.17-90,201.54

Finding the Fourth Proportional to 161,823.05, 223,311.17 and 90,201.54

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Solution

The fourth proportional to 161,823.05, 223,311.17 and 90,201.54 is: 124,475.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,823.05 : 223,311.17 = 90,201.54 : x
  2. Step 2: Convert to fraction form
    161,823.05/223,311.17 = 90,201.54/x
  3. Step 3: Cross multiply
    161,823.05x = 223,311.17 × 90,201.54
  4. Step 4: Simplify right side
    161,823.05x = 20,143,011,433.20
  5. Step 5: Solve for x
    x = 20,143,011,433.20/161,823.05
  6. Step 6: Final answer
    x = 124,475.54

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1.5x scale

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.