Home / 161,392.68-222,718.62-89,771.16

Finding the Fourth Proportional to 161,392.68, 222,718.62 and 89,771.16

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Solution

The fourth proportional to 161,392.68, 222,718.62 and 89,771.16 is: 123,882.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,392.68 : 222,718.62 = 89,771.16 : x
  2. Step 2: Convert to fraction form
    161,392.68/222,718.62 = 89,771.16/x
  3. Step 3: Cross multiply
    161,392.68x = 222,718.62 × 89,771.16
  4. Step 4: Simplify right side
    161,392.68x = 19,993,708,871.00
  5. Step 5: Solve for x
    x = 19,993,708,871.00/161,392.68
  6. Step 6: Final answer
    x = 123,882.38

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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.