Home / 161,516.44-222,150.90-129,615.40

Finding the Fourth Proportional to 161,516.44, 222,150.90 and 129,615.40

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Solution

The fourth proportional to 161,516.44, 222,150.90 and 129,615.40 is: 178,273.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,516.44 : 222,150.90 = 129,615.40 : x
  2. Step 2: Convert to fraction form
    161,516.44/222,150.90 = 129,615.40/x
  3. Step 3: Cross multiply
    161,516.44x = 222,150.90 × 129,615.40
  4. Step 4: Simplify right side
    161,516.44x = 28,794,177,763.86
  5. Step 5: Solve for x
    x = 28,794,177,763.86/161,516.44
  6. Step 6: Final answer
    x = 178,273.97

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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.