Home / 161,107.20-222,321.80-89,491.84

Finding the Fourth Proportional to 161,107.20, 222,321.80 and 89,491.84

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Solution

The fourth proportional to 161,107.20, 222,321.80 and 89,491.84 is: 123,495.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,107.20 : 222,321.80 = 89,491.84 : x
  2. Step 2: Convert to fraction form
    161,107.20/222,321.80 = 89,491.84/x
  3. Step 3: Cross multiply
    161,107.20x = 222,321.80 × 89,491.84
  4. Step 4: Simplify right side
    161,107.20x = 19,895,986,954.11
  5. Step 5: Solve for x
    x = 19,895,986,954.11/161,107.20
  6. Step 6: Final answer
    x = 123,495.33

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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.