Home / 123,759.23-185,609.11-57,135.37

Finding the Fourth Proportional to 123,759.23, 185,609.11 and 57,135.37

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Solution

The fourth proportional to 123,759.23, 185,609.11 and 57,135.37 is: 85,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,759.23 : 185,609.11 = 57,135.37 : x
  2. Step 2: Convert to fraction form
    123,759.23/185,609.11 = 57,135.37/x
  3. Step 3: Cross multiply
    123,759.23x = 185,609.11 × 57,135.37
  4. Step 4: Simplify right side
    123,759.23x = 10,604,844,568.36
  5. Step 5: Solve for x
    x = 10,604,844,568.36/123,759.23
  6. Step 6: Final answer
    x = 85,689.32

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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.