Home / 205,966.20-308,718.90-106,087.80

Finding the Fourth Proportional to 205,966.20, 308,718.90 and 106,087.80

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Solution

The fourth proportional to 205,966.20, 308,718.90 and 106,087.80 is: 159,013.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,966.20 : 308,718.90 = 106,087.80 : x
  2. Step 2: Convert to fraction form
    205,966.20/308,718.90 = 106,087.80/x
  3. Step 3: Cross multiply
    205,966.20x = 308,718.90 × 106,087.80
  4. Step 4: Simplify right side
    205,966.20x = 32,751,308,919.42
  5. Step 5: Solve for x
    x = 32,751,308,919.42/205,966.20
  6. Step 6: Final answer
    x = 159,013.03

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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.