Home / 123,758.21-185,607.54-57,134.36

Finding the Fourth Proportional to 123,758.21, 185,607.54 and 57,134.36

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Solution

The fourth proportional to 123,758.21, 185,607.54 and 57,134.36 is: 85,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,758.21 : 185,607.54 = 57,134.36 : x
  2. Step 2: Convert to fraction form
    123,758.21/185,607.54 = 57,134.36/x
  3. Step 3: Cross multiply
    123,758.21x = 185,607.54 × 57,134.36
  4. Step 4: Simplify right side
    123,758.21x = 10,604,568,473.09
  5. Step 5: Solve for x
    x = 10,604,568,473.09/123,758.21
  6. Step 6: Final answer
    x = 85,687.80

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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.