Home / 205,756.12-308,634.96-72,564.04

Finding the Fourth Proportional to 205,756.12, 308,634.96 and 72,564.04

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Solution

The fourth proportional to 205,756.12, 308,634.96 and 72,564.04 is: 108,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,756.12 : 308,634.96 = 72,564.04 : x
  2. Step 2: Convert to fraction form
    205,756.12/308,634.96 = 72,564.04/x
  3. Step 3: Cross multiply
    205,756.12x = 308,634.96 × 72,564.04
  4. Step 4: Simplify right side
    205,756.12x = 22,395,799,582.84
  5. Step 5: Solve for x
    x = 22,395,799,582.84/205,756.12
  6. Step 6: Final answer
    x = 108,846.34

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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.