Home / 130,520.70-195,732.45-51,618.60

Finding the Fourth Proportional to 130,520.70, 195,732.45 and 51,618.60

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Solution

The fourth proportional to 130,520.70, 195,732.45 and 51,618.60 is: 77,408.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,520.70 : 195,732.45 = 51,618.60 : x
  2. Step 2: Convert to fraction form
    130,520.70/195,732.45 = 51,618.60/x
  3. Step 3: Cross multiply
    130,520.70x = 195,732.45 × 51,618.60
  4. Step 4: Simplify right side
    130,520.70x = 10,103,435,043.57
  5. Step 5: Solve for x
    x = 10,103,435,043.57/130,520.70
  6. Step 6: Final answer
    x = 77,408.68

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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.