Home / 123,355.39-185,039.68-39,121.94

Finding the Fourth Proportional to 123,355.39, 185,039.68 and 39,121.94

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Solution

The fourth proportional to 123,355.39, 185,039.68 and 39,121.94 is: 58,684.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,355.39 : 185,039.68 = 39,121.94 : x
  2. Step 2: Convert to fraction form
    123,355.39/185,039.68 = 39,121.94/x
  3. Step 3: Cross multiply
    123,355.39x = 185,039.68 × 39,121.94
  4. Step 4: Simplify right side
    123,355.39x = 7,239,110,137.77
  5. Step 5: Solve for x
    x = 7,239,110,137.77/123,355.39
  6. Step 6: Final answer
    x = 58,684.99

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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.