Home / 205,845.58-308,726.34-72,730.18

Finding the Fourth Proportional to 205,845.58, 308,726.34 and 72,730.18

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Solution

The fourth proportional to 205,845.58, 308,726.34 and 72,730.18 is: 109,080.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,845.58 : 308,726.34 = 72,730.18 : x
  2. Step 2: Convert to fraction form
    205,845.58/308,726.34 = 72,730.18/x
  3. Step 3: Cross multiply
    205,845.58x = 308,726.34 × 72,730.18
  4. Step 4: Simplify right side
    205,845.58x = 22,453,722,278.94
  5. Step 5: Solve for x
    x = 22,453,722,278.94/205,845.58
  6. Step 6: Final answer
    x = 109,080.42

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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.