Home / 161,123.63-222,344.39-89,508.19

Finding the Fourth Proportional to 161,123.63, 222,344.39 and 89,508.19

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Solution

The fourth proportional to 161,123.63, 222,344.39 and 89,508.19 is: 123,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,123.63 : 222,344.39 = 89,508.19 : x
  2. Step 2: Convert to fraction form
    161,123.63/222,344.39 = 89,508.19/x
  3. Step 3: Cross multiply
    161,123.63x = 222,344.39 × 89,508.19
  4. Step 4: Simplify right side
    161,123.63x = 19,901,643,990.36
  5. Step 5: Solve for x
    x = 19,901,643,990.36/161,123.63
  6. Step 6: Final answer
    x = 123,517.85

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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.