Home / 119,820.15-165,352.39-66,105.16

Finding the Fourth Proportional to 119,820.15, 165,352.39 and 66,105.16

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Solution

The fourth proportional to 119,820.15, 165,352.39 and 66,105.16 is: 91,225.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,820.15 : 165,352.39 = 66,105.16 : x
  2. Step 2: Convert to fraction form
    119,820.15/165,352.39 = 66,105.16/x
  3. Step 3: Cross multiply
    119,820.15x = 165,352.39 × 66,105.16
  4. Step 4: Simplify right side
    119,820.15x = 10,930,645,618.69
  5. Step 5: Solve for x
    x = 10,930,645,618.69/119,820.15
  6. Step 6: Final answer
    x = 91,225.44

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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.