Home / 159,939.06-220,710.33-91,953.78

Finding the Fourth Proportional to 159,939.06, 220,710.33 and 91,953.78

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Solution

The fourth proportional to 159,939.06, 220,710.33 and 91,953.78 is: 126,893.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,939.06 : 220,710.33 = 91,953.78 : x
  2. Step 2: Convert to fraction form
    159,939.06/220,710.33 = 91,953.78/x
  3. Step 3: Cross multiply
    159,939.06x = 220,710.33 × 91,953.78
  4. Step 4: Simplify right side
    159,939.06x = 20,295,149,128.55
  5. Step 5: Solve for x
    x = 20,295,149,128.55/159,939.06
  6. Step 6: Final answer
    x = 126,893.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.