Home / 205,869.13-308,828.60-72,722.14

Finding the Fourth Proportional to 205,869.13, 308,828.60 and 72,722.14

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Solution

The fourth proportional to 205,869.13, 308,828.60 and 72,722.14 is: 109,092.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,869.13 : 308,828.60 = 72,722.14 : x
  2. Step 2: Convert to fraction form
    205,869.13/308,828.60 = 72,722.14/x
  3. Step 3: Cross multiply
    205,869.13x = 308,828.60 × 72,722.14
  4. Step 4: Simplify right side
    205,869.13x = 22,458,676,685.20
  5. Step 5: Solve for x
    x = 22,458,676,685.20/205,869.13
  6. Step 6: Final answer
    x = 109,092.01

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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.