Home / 119,818.11-165,349.56-66,103.12

Finding the Fourth Proportional to 119,818.11, 165,349.56 and 66,103.12

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Solution

The fourth proportional to 119,818.11, 165,349.56 and 66,103.12 is: 91,222.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,818.11 : 165,349.56 = 66,103.12 : x
  2. Step 2: Convert to fraction form
    119,818.11/165,349.56 = 66,103.12/x
  3. Step 3: Cross multiply
    119,818.11x = 165,349.56 × 66,103.12
  4. Step 4: Simplify right side
    119,818.11x = 10,930,121,806.63
  5. Step 5: Solve for x
    x = 10,930,121,806.63/119,818.11
  6. Step 6: Final answer
    x = 91,222.62

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1.5x scale

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.