Home / 130,531.20-196,234.20-111,285.60

Finding the Fourth Proportional to 130,531.20, 196,234.20 and 111,285.60

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Solution

The fourth proportional to 130,531.20, 196,234.20 and 111,285.60 is: 167,301.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,531.20 : 196,234.20 = 111,285.60 : x
  2. Step 2: Convert to fraction form
    130,531.20/196,234.20 = 111,285.60/x
  3. Step 3: Cross multiply
    130,531.20x = 196,234.20 × 111,285.60
  4. Step 4: Simplify right side
    130,531.20x = 21,838,040,687.52
  5. Step 5: Solve for x
    x = 21,838,040,687.52/130,531.20
  6. Step 6: Final answer
    x = 167,301.31

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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.