Home / 205,848.20-308,772.30-121,648.70

Finding the Fourth Proportional to 205,848.20, 308,772.30 and 121,648.70

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Solution

The fourth proportional to 205,848.20, 308,772.30 and 121,648.70 is: 182,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,848.20 : 308,772.30 = 121,648.70 : x
  2. Step 2: Convert to fraction form
    205,848.20/308,772.30 = 121,648.70/x
  3. Step 3: Cross multiply
    205,848.20x = 308,772.30 × 121,648.70
  4. Step 4: Simplify right side
    205,848.20x = 37,561,748,891.01
  5. Step 5: Solve for x
    x = 37,561,748,891.01/205,848.20
  6. Step 6: Final answer
    x = 182,473.05

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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.