Home / 205,446.08-308,107.84-87,115.52

Finding the Fourth Proportional to 205,446.08, 308,107.84 and 87,115.52

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Solution

The fourth proportional to 205,446.08, 308,107.84 and 87,115.52 is: 130,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,446.08 : 308,107.84 = 87,115.52 : x
  2. Step 2: Convert to fraction form
    205,446.08/308,107.84 = 87,115.52/x
  3. Step 3: Cross multiply
    205,446.08x = 308,107.84 × 87,115.52
  4. Step 4: Simplify right side
    205,446.08x = 26,840,974,697.68
  5. Step 5: Solve for x
    x = 26,840,974,697.68/205,446.08
  6. Step 6: Final answer
    x = 130,647.30

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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.