Home / 161,270.68-222,543.78-89,648.20

Finding the Fourth Proportional to 161,270.68, 222,543.78 and 89,648.20

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Solution

The fourth proportional to 161,270.68, 222,543.78 and 89,648.20 is: 123,709.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,270.68 : 222,543.78 = 89,648.20 : x
  2. Step 2: Convert to fraction form
    161,270.68/222,543.78 = 89,648.20/x
  3. Step 3: Cross multiply
    161,270.68x = 222,543.78 × 89,648.20
  4. Step 4: Simplify right side
    161,270.68x = 19,950,649,298.20
  5. Step 5: Solve for x
    x = 19,950,649,298.20/161,270.68
  6. Step 6: Final answer
    x = 123,709.09

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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.