Home / 123,919.20-185,774.31-53,745.66

Finding the Fourth Proportional to 123,919.20, 185,774.31 and 53,745.66

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Solution

The fourth proportional to 123,919.20, 185,774.31 and 53,745.66 is: 80,573.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,919.20 : 185,774.31 = 53,745.66 : x
  2. Step 2: Convert to fraction form
    123,919.20/185,774.31 = 53,745.66/x
  3. Step 3: Cross multiply
    123,919.20x = 185,774.31 × 53,745.66
  4. Step 4: Simplify right side
    123,919.20x = 9,984,562,901.99
  5. Step 5: Solve for x
    x = 9,984,562,901.99/123,919.20
  6. Step 6: Final answer
    x = 80,573.17

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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.