Home / 345,014.52-517,546.89-108,355.20

Finding the Fourth Proportional to 345,014.52, 517,546.89 and 108,355.20

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Solution

The fourth proportional to 345,014.52, 517,546.89 and 108,355.20 is: 162,540.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,014.52 : 517,546.89 = 108,355.20 : x
  2. Step 2: Convert to fraction form
    345,014.52/517,546.89 = 108,355.20/x
  3. Step 3: Cross multiply
    345,014.52x = 517,546.89 × 108,355.20
  4. Step 4: Simplify right side
    345,014.52x = 56,078,896,775.33
  5. Step 5: Solve for x
    x = 56,078,896,775.33/345,014.52
  6. Step 6: Final answer
    x = 162,540.69

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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.