Home / 161,169.23-222,344.64-100,698.68

Finding the Fourth Proportional to 161,169.23, 222,344.64 and 100,698.68

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Solution

The fourth proportional to 161,169.23, 222,344.64 and 100,698.68 is: 138,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,169.23 : 222,344.64 = 100,698.68 : x
  2. Step 2: Convert to fraction form
    161,169.23/222,344.64 = 100,698.68/x
  3. Step 3: Cross multiply
    161,169.23x = 222,344.64 × 100,698.68
  4. Step 4: Simplify right side
    161,169.23x = 22,389,810,641.35
  5. Step 5: Solve for x
    x = 22,389,810,641.35/161,169.23
  6. Step 6: Final answer
    x = 138,921.13

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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.