Home / 161,209.53-222,464.70-89,587.71

Finding the Fourth Proportional to 161,209.53, 222,464.70 and 89,587.71

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Solution

The fourth proportional to 161,209.53, 222,464.70 and 89,587.71 is: 123,628.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,209.53 : 222,464.70 = 89,587.71 : x
  2. Step 2: Convert to fraction form
    161,209.53/222,464.70 = 89,587.71/x
  3. Step 3: Cross multiply
    161,209.53x = 222,464.70 × 89,587.71
  4. Step 4: Simplify right side
    161,209.53x = 19,930,103,028.84
  5. Step 5: Solve for x
    x = 19,930,103,028.84/161,209.53
  6. Step 6: Final answer
    x = 123,628.57

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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.