Home / 161,122.77-222,343.25-89,507.30

Finding the Fourth Proportional to 161,122.77, 222,343.25 and 89,507.30

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Solution

The fourth proportional to 161,122.77, 222,343.25 and 89,507.30 is: 123,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,122.77 : 222,343.25 = 89,507.30 : x
  2. Step 2: Convert to fraction form
    161,122.77/222,343.25 = 89,507.30/x
  3. Step 3: Cross multiply
    161,122.77x = 222,343.25 × 89,507.30
  4. Step 4: Simplify right side
    161,122.77x = 19,901,342,421.47
  5. Step 5: Solve for x
    x = 19,901,342,421.47/161,122.77
  6. Step 6: Final answer
    x = 123,516.64

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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.