Home / 129,265.85-193,898.78-40,519.82

Finding the Fourth Proportional to 129,265.85, 193,898.78 and 40,519.82

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Solution

The fourth proportional to 129,265.85, 193,898.78 and 40,519.82 is: 60,779.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,265.85 : 193,898.78 = 40,519.82 : x
  2. Step 2: Convert to fraction form
    129,265.85/193,898.78 = 40,519.82/x
  3. Step 3: Cross multiply
    129,265.85x = 193,898.78 × 40,519.82
  4. Step 4: Simplify right side
    129,265.85x = 7,856,742,491.73
  5. Step 5: Solve for x
    x = 7,856,742,491.73/129,265.85
  6. Step 6: Final answer
    x = 60,779.72

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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.