Home / 161,518.44-222,153.66-129,617.40

Finding the Fourth Proportional to 161,518.44, 222,153.66 and 129,617.40

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Solution

The fourth proportional to 161,518.44, 222,153.66 and 129,617.40 is: 178,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,518.44 : 222,153.66 = 129,617.40 : x
  2. Step 2: Convert to fraction form
    161,518.44/222,153.66 = 129,617.40/x
  3. Step 3: Cross multiply
    161,518.44x = 222,153.66 × 129,617.40
  4. Step 4: Simplify right side
    161,518.44x = 28,794,979,809.68
  5. Step 5: Solve for x
    x = 28,794,979,809.68/161,518.44
  6. Step 6: Final answer
    x = 178,276.73

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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.