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Finding the Fourth Proportional to 130,480.44, 195,720.68 and 36,986.20

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Solution

The fourth proportional to 130,480.44, 195,720.68 and 36,986.20 is: 55,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,480.44 : 195,720.68 = 36,986.20 : x
  2. Step 2: Convert to fraction form
    130,480.44/195,720.68 = 36,986.20/x
  3. Step 3: Cross multiply
    130,480.44x = 195,720.68 × 36,986.20
  4. Step 4: Simplify right side
    130,480.44x = 7,238,964,214.62
  5. Step 5: Solve for x
    x = 7,238,964,214.62/130,480.44
  6. Step 6: Final answer
    x = 55,479.31

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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.