Home / 205,321.62-307,928.95-86,932.02

Finding the Fourth Proportional to 205,321.62, 307,928.95 and 86,932.02

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Solution

The fourth proportional to 205,321.62, 307,928.95 and 86,932.02 is: 130,375.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,321.62 : 307,928.95 = 86,932.02 : x
  2. Step 2: Convert to fraction form
    205,321.62/307,928.95 = 86,932.02/x
  3. Step 3: Cross multiply
    205,321.62x = 307,928.95 × 86,932.02
  4. Step 4: Simplify right side
    205,321.62x = 26,768,885,639.98
  5. Step 5: Solve for x
    x = 26,768,885,639.98/205,321.62
  6. Step 6: Final answer
    x = 130,375.39

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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.