Home / 119,820.63-165,353.05-66,105.65

Finding the Fourth Proportional to 119,820.63, 165,353.05 and 66,105.65

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Solution

The fourth proportional to 119,820.63, 165,353.05 and 66,105.65 is: 91,226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,820.63 : 165,353.05 = 66,105.65 : x
  2. Step 2: Convert to fraction form
    119,820.63/165,353.05 = 66,105.65/x
  3. Step 3: Cross multiply
    119,820.63x = 165,353.05 × 66,105.65
  4. Step 4: Simplify right side
    119,820.63x = 10,930,769,857.70
  5. Step 5: Solve for x
    x = 10,930,769,857.70/119,820.63
  6. Step 6: Final answer
    x = 91,226.11

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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.