Home / 161,305.76-222,600.79-89,685.16

Finding the Fourth Proportional to 161,305.76, 222,600.79 and 89,685.16

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Solution

The fourth proportional to 161,305.76, 222,600.79 and 89,685.16 is: 123,764.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,305.76 : 222,600.79 = 89,685.16 : x
  2. Step 2: Convert to fraction form
    161,305.76/222,600.79 = 89,685.16/x
  3. Step 3: Cross multiply
    161,305.76x = 222,600.79 × 89,685.16
  4. Step 4: Simplify right side
    161,305.76x = 19,963,987,022.88
  5. Step 5: Solve for x
    x = 19,963,987,022.88/161,305.76
  6. Step 6: Final answer
    x = 123,764.87

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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.