Home / 161,311.96-222,609.27-89,691.36

Finding the Fourth Proportional to 161,311.96, 222,609.27 and 89,691.36

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Solution

The fourth proportional to 161,311.96, 222,609.27 and 89,691.36 is: 123,773.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,311.96 : 222,609.27 = 89,691.36 : x
  2. Step 2: Convert to fraction form
    161,311.96/222,609.27 = 89,691.36/x
  3. Step 3: Cross multiply
    161,311.96x = 222,609.27 × 89,691.36
  4. Step 4: Simplify right side
    161,311.96x = 19,966,128,174.91
  5. Step 5: Solve for x
    x = 19,966,128,174.91/161,311.96
  6. Step 6: Final answer
    x = 123,773.39

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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.