Home / 161,530.60-222,786.84-143,400.48

Finding the Fourth Proportional to 161,530.60, 222,786.84 and 143,400.48

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Solution

The fourth proportional to 161,530.60, 222,786.84 and 143,400.48 is: 197,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,530.60 : 222,786.84 = 143,400.48 : x
  2. Step 2: Convert to fraction form
    161,530.60/222,786.84 = 143,400.48/x
  3. Step 3: Cross multiply
    161,530.60x = 222,786.84 × 143,400.48
  4. Step 4: Simplify right side
    161,530.60x = 31,947,739,793.68
  5. Step 5: Solve for x
    x = 31,947,739,793.68/161,530.60
  6. Step 6: Final answer
    x = 197,781.35

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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.