Home / 161,380.62-222,702.06-89,759.10

Finding the Fourth Proportional to 161,380.62, 222,702.06 and 89,759.10

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Solution

The fourth proportional to 161,380.62, 222,702.06 and 89,759.10 is: 123,865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,380.62 : 222,702.06 = 89,759.10 : x
  2. Step 2: Convert to fraction form
    161,380.62/222,702.06 = 89,759.10/x
  3. Step 3: Cross multiply
    161,380.62x = 222,702.06 × 89,759.10
  4. Step 4: Simplify right side
    161,380.62x = 19,989,536,473.75
  5. Step 5: Solve for x
    x = 19,989,536,473.75/161,380.62
  6. Step 6: Final answer
    x = 123,865.78

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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.