Home / 161,020.01-222,214.55-89,400.03

Finding the Fourth Proportional to 161,020.01, 222,214.55 and 89,400.03

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Solution

The fourth proportional to 161,020.01, 222,214.55 and 89,400.03 is: 123,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,020.01 : 222,214.55 = 89,400.03 : x
  2. Step 2: Convert to fraction form
    161,020.01/222,214.55 = 89,400.03/x
  3. Step 3: Cross multiply
    161,020.01x = 222,214.55 × 89,400.03
  4. Step 4: Simplify right side
    161,020.01x = 19,865,987,436.44
  5. Step 5: Solve for x
    x = 19,865,987,436.44/161,020.01
  6. Step 6: Final answer
    x = 123,375.90

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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.