Home / 208,538.06-312,759.09-124,321.95

Finding the Fourth Proportional to 208,538.06, 312,759.09 and 124,321.95

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Solution

The fourth proportional to 208,538.06, 312,759.09 and 124,321.95 is: 186,454.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,538.06 : 312,759.09 = 124,321.95 : x
  2. Step 2: Convert to fraction form
    208,538.06/312,759.09 = 124,321.95/x
  3. Step 3: Cross multiply
    208,538.06x = 312,759.09 × 124,321.95
  4. Step 4: Simplify right side
    208,538.06x = 38,882,819,949.03
  5. Step 5: Solve for x
    x = 38,882,819,949.03/208,538.06
  6. Step 6: Final answer
    x = 186,454.31

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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.