Home / 161,426.12-222,764.98-89,805.92

Finding the Fourth Proportional to 161,426.12, 222,764.98 and 89,805.92

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Solution

The fourth proportional to 161,426.12, 222,764.98 and 89,805.92 is: 123,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,426.12 : 222,764.98 = 89,805.92 : x
  2. Step 2: Convert to fraction form
    161,426.12/222,764.98 = 89,805.92/x
  3. Step 3: Cross multiply
    161,426.12x = 222,764.98 × 89,805.92
  4. Step 4: Simplify right side
    161,426.12x = 20,005,613,972.68
  5. Step 5: Solve for x
    x = 20,005,613,972.68/161,426.12
  6. Step 6: Final answer
    x = 123,930.46

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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.