Home / 205,836.30-308,948.85-127,104.30

Finding the Fourth Proportional to 205,836.30, 308,948.85 and 127,104.30

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Solution

The fourth proportional to 205,836.30, 308,948.85 and 127,104.30 is: 190,776.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,836.30 : 308,948.85 = 127,104.30 : x
  2. Step 2: Convert to fraction form
    205,836.30/308,948.85 = 127,104.30/x
  3. Step 3: Cross multiply
    205,836.30x = 308,948.85 × 127,104.30
  4. Step 4: Simplify right side
    205,836.30x = 39,268,727,315.06
  5. Step 5: Solve for x
    x = 39,268,727,315.06/205,836.30
  6. Step 6: Final answer
    x = 190,776.49

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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.