Home / 129,259.76-193,892.07-40,511.30

Finding the Fourth Proportional to 129,259.76, 193,892.07 and 40,511.30

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Solution

The fourth proportional to 129,259.76, 193,892.07 and 40,511.30 is: 60,767.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,259.76 : 193,892.07 = 40,511.30 : x
  2. Step 2: Convert to fraction form
    129,259.76/193,892.07 = 40,511.30/x
  3. Step 3: Cross multiply
    129,259.76x = 193,892.07 × 40,511.30
  4. Step 4: Simplify right side
    129,259.76x = 7,854,819,815.39
  5. Step 5: Solve for x
    x = 7,854,819,815.39/129,259.76
  6. Step 6: Final answer
    x = 60,767.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.