Home / 426,098.37-639,122.50-159,836.59

Finding the Fourth Proportional to 426,098.37, 639,122.50 and 159,836.59

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Solution

The fourth proportional to 426,098.37, 639,122.50 and 159,836.59 is: 239,745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,098.37 : 639,122.50 = 159,836.59 : x
  2. Step 2: Convert to fraction form
    426,098.37/639,122.50 = 159,836.59/x
  3. Step 3: Cross multiply
    426,098.37x = 639,122.50 × 159,836.59
  4. Step 4: Simplify right side
    426,098.37x = 102,155,161,990.97
  5. Step 5: Solve for x
    x = 102,155,161,990.97/426,098.37
  6. Step 6: Final answer
    x = 239,745.49

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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.