Home / 130,418.91-195,628.43-71,222.22

Finding the Fourth Proportional to 130,418.91, 195,628.43 and 71,222.22

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Solution

The fourth proportional to 130,418.91, 195,628.43 and 71,222.22 is: 106,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,418.91 : 195,628.43 = 71,222.22 : x
  2. Step 2: Convert to fraction form
    130,418.91/195,628.43 = 71,222.22/x
  3. Step 3: Cross multiply
    130,418.91x = 195,628.43 × 71,222.22
  4. Step 4: Simplify right side
    130,418.91x = 13,933,091,257.77
  5. Step 5: Solve for x
    x = 13,933,091,257.77/130,418.91
  6. Step 6: Final answer
    x = 106,833.37

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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.