Home / 209,769.12-289,481.76-114,275.52

Finding the Fourth Proportional to 209,769.12, 289,481.76 and 114,275.52

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Solution

The fourth proportional to 209,769.12, 289,481.76 and 114,275.52 is: 157,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,769.12 : 289,481.76 = 114,275.52 : x
  2. Step 2: Convert to fraction form
    209,769.12/289,481.76 = 114,275.52/x
  3. Step 3: Cross multiply
    209,769.12x = 289,481.76 × 114,275.52
  4. Step 4: Simplify right side
    209,769.12x = 33,080,678,654.52
  5. Step 5: Solve for x
    x = 33,080,678,654.52/209,769.12
  6. Step 6: Final answer
    x = 157,700.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.