Home / 205,913.36-308,672.76-65,581.04

Finding the Fourth Proportional to 205,913.36, 308,672.76 and 65,581.04

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Solution

The fourth proportional to 205,913.36, 308,672.76 and 65,581.04 is: 98,308.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,913.36 : 308,672.76 = 65,581.04 : x
  2. Step 2: Convert to fraction form
    205,913.36/308,672.76 = 65,581.04/x
  3. Step 3: Cross multiply
    205,913.36x = 308,672.76 × 65,581.04
  4. Step 4: Simplify right side
    205,913.36x = 20,243,080,620.47
  5. Step 5: Solve for x
    x = 20,243,080,620.47/205,913.36
  6. Step 6: Final answer
    x = 98,308.73

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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.