Home / 129,395.48-193,977.78-50,491.35

Finding the Fourth Proportional to 129,395.48, 193,977.78 and 50,491.35

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Solution

The fourth proportional to 129,395.48, 193,977.78 and 50,491.35 is: 75,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,395.48 : 193,977.78 = 50,491.35 : x
  2. Step 2: Convert to fraction form
    129,395.48/193,977.78 = 50,491.35/x
  3. Step 3: Cross multiply
    129,395.48x = 193,977.78 × 50,491.35
  4. Step 4: Simplify right side
    129,395.48x = 9,794,199,982.20
  5. Step 5: Solve for x
    x = 9,794,199,982.20/129,395.48
  6. Step 6: Final answer
    x = 75,691.98

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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.