Home / 121,076.11-181,613.86-57,704.14

Finding the Fourth Proportional to 121,076.11, 181,613.86 and 57,704.14

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Solution

The fourth proportional to 121,076.11, 181,613.86 and 57,704.14 is: 86,556.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,076.11 : 181,613.86 = 57,704.14 : x
  2. Step 2: Convert to fraction form
    121,076.11/181,613.86 = 57,704.14/x
  3. Step 3: Cross multiply
    121,076.11x = 181,613.86 × 57,704.14
  4. Step 4: Simplify right side
    121,076.11x = 10,479,871,603.38
  5. Step 5: Solve for x
    x = 10,479,871,603.38/121,076.11
  6. Step 6: Final answer
    x = 86,556.06

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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.