Home / 120,761.33-181,146.87-30,806.38

Finding the Fourth Proportional to 120,761.33, 181,146.87 and 30,806.38

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Solution

The fourth proportional to 120,761.33, 181,146.87 and 30,806.38 is: 46,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,761.33 : 181,146.87 = 30,806.38 : x
  2. Step 2: Convert to fraction form
    120,761.33/181,146.87 = 30,806.38/x
  3. Step 3: Cross multiply
    120,761.33x = 181,146.87 × 30,806.38
  4. Step 4: Simplify right side
    120,761.33x = 5,580,478,860.16
  5. Step 5: Solve for x
    x = 5,580,478,860.16/120,761.33
  6. Step 6: Final answer
    x = 46,210.81

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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.