Home / 130,179.72-195,380.52-51,349.30

Finding the Fourth Proportional to 130,179.72, 195,380.52 and 51,349.30

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Solution

The fourth proportional to 130,179.72, 195,380.52 and 51,349.30 is: 77,067.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,179.72 : 195,380.52 = 51,349.30 : x
  2. Step 2: Convert to fraction form
    130,179.72/195,380.52 = 51,349.30/x
  3. Step 3: Cross multiply
    130,179.72x = 195,380.52 × 51,349.30
  4. Step 4: Simplify right side
    130,179.72x = 10,032,652,935.64
  5. Step 5: Solve for x
    x = 10,032,652,935.64/130,179.72
  6. Step 6: Final answer
    x = 77,067.71

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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.