Home / 161,139.40-222,407.94-89,544.04

Finding the Fourth Proportional to 161,139.40, 222,407.94 and 89,544.04

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Solution

The fourth proportional to 161,139.40, 222,407.94 and 89,544.04 is: 123,590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,139.40 : 222,407.94 = 89,544.04 : x
  2. Step 2: Convert to fraction form
    161,139.40/222,407.94 = 89,544.04/x
  3. Step 3: Cross multiply
    161,139.40x = 222,407.94 × 89,544.04
  4. Step 4: Simplify right side
    161,139.40x = 19,915,305,475.68
  5. Step 5: Solve for x
    x = 19,915,305,475.68/161,139.40
  6. Step 6: Final answer
    x = 123,590.54

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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.