Home / 161,288.69-222,565.77-89,664.35

Finding the Fourth Proportional to 161,288.69, 222,565.77 and 89,664.35

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Solution

The fourth proportional to 161,288.69, 222,565.77 and 89,664.35 is: 123,729.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,288.69 : 222,565.77 = 89,664.35 : x
  2. Step 2: Convert to fraction form
    161,288.69/222,565.77 = 89,664.35/x
  3. Step 3: Cross multiply
    161,288.69x = 222,565.77 × 89,664.35
  4. Step 4: Simplify right side
    161,288.69x = 19,956,215,099.30
  5. Step 5: Solve for x
    x = 19,956,215,099.30/161,288.69
  6. Step 6: Final answer
    x = 123,729.79

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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.