Home / 161,965.38-223,516.96-90,343.85

Finding the Fourth Proportional to 161,965.38, 223,516.96 and 90,343.85

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Solution

The fourth proportional to 161,965.38, 223,516.96 and 90,343.85 is: 124,677.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,965.38 : 223,516.96 = 90,343.85 : x
  2. Step 2: Convert to fraction form
    161,965.38/223,516.96 = 90,343.85/x
  3. Step 3: Cross multiply
    161,965.38x = 223,516.96 × 90,343.85
  4. Step 4: Simplify right side
    161,965.38x = 20,193,383,039.63
  5. Step 5: Solve for x
    x = 20,193,383,039.63/161,965.38
  6. Step 6: Final answer
    x = 124,677.16

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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.