Home / 130,120.56-195,042.60-51,223.92

Finding the Fourth Proportional to 130,120.56, 195,042.60 and 51,223.92

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Solution

The fourth proportional to 130,120.56, 195,042.60 and 51,223.92 is: 76,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,120.56 : 195,042.60 = 51,223.92 : x
  2. Step 2: Convert to fraction form
    130,120.56/195,042.60 = 51,223.92/x
  3. Step 3: Cross multiply
    130,120.56x = 195,042.60 × 51,223.92
  4. Step 4: Simplify right side
    130,120.56x = 9,990,846,538.99
  5. Step 5: Solve for x
    x = 9,990,846,538.99/130,120.56
  6. Step 6: Final answer
    x = 76,781.46

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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.