Home / 121,205.70-181,837.26-61,086.42

Finding the Fourth Proportional to 121,205.70, 181,837.26 and 61,086.42

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Solution

The fourth proportional to 121,205.70, 181,837.26 and 61,086.42 is: 91,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,205.70 : 181,837.26 = 61,086.42 : x
  2. Step 2: Convert to fraction form
    121,205.70/181,837.26 = 61,086.42/x
  3. Step 3: Cross multiply
    121,205.70x = 181,837.26 × 61,086.42
  4. Step 4: Simplify right side
    121,205.70x = 11,107,787,236.01
  5. Step 5: Solve for x
    x = 11,107,787,236.01/121,205.70
  6. Step 6: Final answer
    x = 91,644.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.