Home / 161,380.12-222,701.37-89,758.60

Finding the Fourth Proportional to 161,380.12, 222,701.37 and 89,758.60

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Solution

The fourth proportional to 161,380.12, 222,701.37 and 89,758.60 is: 123,865.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,380.12 : 222,701.37 = 89,758.60 : x
  2. Step 2: Convert to fraction form
    161,380.12/222,701.37 = 89,758.60/x
  3. Step 3: Cross multiply
    161,380.12x = 222,701.37 × 89,758.60
  4. Step 4: Simplify right side
    161,380.12x = 19,989,363,189.28
  5. Step 5: Solve for x
    x = 19,989,363,189.28/161,380.12
  6. Step 6: Final answer
    x = 123,865.09

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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.