Home / 205,822.08-308,654.40-72,677.44

Finding the Fourth Proportional to 205,822.08, 308,654.40 and 72,677.44

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Solution

The fourth proportional to 205,822.08, 308,654.40 and 72,677.44 is: 108,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,822.08 : 308,654.40 = 72,677.44 : x
  2. Step 2: Convert to fraction form
    205,822.08/308,654.40 = 72,677.44/x
  3. Step 3: Cross multiply
    205,822.08x = 308,654.40 × 72,677.44
  4. Step 4: Simplify right side
    205,822.08x = 22,432,211,636.74
  5. Step 5: Solve for x
    x = 22,432,211,636.74/205,822.08
  6. Step 6: Final answer
    x = 108,988.36

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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.