Home / 125,839.86-188,759.84-103,606.54

Finding the Fourth Proportional to 125,839.86, 188,759.84 and 103,606.54

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Solution

The fourth proportional to 125,839.86, 188,759.84 and 103,606.54 is: 155,409.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,839.86 : 188,759.84 = 103,606.54 : x
  2. Step 2: Convert to fraction form
    125,839.86/188,759.84 = 103,606.54/x
  3. Step 3: Cross multiply
    125,839.86x = 188,759.84 × 103,606.54
  4. Step 4: Simplify right side
    125,839.86x = 19,556,753,913.35
  5. Step 5: Solve for x
    x = 19,556,753,913.35/125,839.86
  6. Step 6: Final answer
    x = 155,409.85

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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.