Home / 123,455.45-185,194.11-34,709.72

Finding the Fourth Proportional to 123,455.45, 185,194.11 and 34,709.72

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Solution

The fourth proportional to 123,455.45, 185,194.11 and 34,709.72 is: 52,067.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,455.45 : 185,194.11 = 34,709.72 : x
  2. Step 2: Convert to fraction form
    123,455.45/185,194.11 = 34,709.72/x
  3. Step 3: Cross multiply
    123,455.45x = 185,194.11 × 34,709.72
  4. Step 4: Simplify right side
    123,455.45x = 6,428,035,530.20
  5. Step 5: Solve for x
    x = 6,428,035,530.20/123,455.45
  6. Step 6: Final answer
    x = 52,067.66

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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.