Home / 161,511.80-222,884.64-88,912.40

Finding the Fourth Proportional to 161,511.80, 222,884.64 and 88,912.40

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Solution

The fourth proportional to 161,511.80, 222,884.64 and 88,912.40 is: 122,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,511.80 : 222,884.64 = 88,912.40 : x
  2. Step 2: Convert to fraction form
    161,511.80/222,884.64 = 88,912.40/x
  3. Step 3: Cross multiply
    161,511.80x = 222,884.64 × 88,912.40
  4. Step 4: Simplify right side
    161,511.80x = 19,817,208,265.54
  5. Step 5: Solve for x
    x = 19,817,208,265.54/161,511.80
  6. Step 6: Final answer
    x = 122,698.21

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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.