Home / 119,674.31-165,121.53-67,979.90

Finding the Fourth Proportional to 119,674.31, 165,121.53 and 67,979.90

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Solution

The fourth proportional to 119,674.31, 165,121.53 and 67,979.90 is: 93,795.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,674.31 : 165,121.53 = 67,979.90 : x
  2. Step 2: Convert to fraction form
    119,674.31/165,121.53 = 67,979.90/x
  3. Step 3: Cross multiply
    119,674.31x = 165,121.53 × 67,979.90
  4. Step 4: Simplify right side
    119,674.31x = 11,224,945,097.25
  5. Step 5: Solve for x
    x = 11,224,945,097.25/119,674.31
  6. Step 6: Final answer
    x = 93,795.78

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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.