Home / 130,749.80-196,138.36-41,982.20

Finding the Fourth Proportional to 130,749.80, 196,138.36 and 41,982.20

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Solution

The fourth proportional to 130,749.80, 196,138.36 and 41,982.20 is: 62,977.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,749.80 : 196,138.36 = 41,982.20 : x
  2. Step 2: Convert to fraction form
    130,749.80/196,138.36 = 41,982.20/x
  3. Step 3: Cross multiply
    130,749.80x = 196,138.36 × 41,982.20
  4. Step 4: Simplify right side
    130,749.80x = 8,234,319,664.50
  5. Step 5: Solve for x
    x = 8,234,319,664.50/130,749.80
  6. Step 6: Final answer
    x = 62,977.69

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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.