Home / 167,905.20-251,663.40-67,999.80

Finding the Fourth Proportional to 167,905.20, 251,663.40 and 67,999.80

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Solution

The fourth proportional to 167,905.20, 251,663.40 and 67,999.80 is: 101,920.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,905.20 : 251,663.40 = 67,999.80 : x
  2. Step 2: Convert to fraction form
    167,905.20/251,663.40 = 67,999.80/x
  3. Step 3: Cross multiply
    167,905.20x = 251,663.40 × 67,999.80
  4. Step 4: Simplify right side
    167,905.20x = 17,113,060,867.32
  5. Step 5: Solve for x
    x = 17,113,060,867.32/167,905.20
  6. Step 6: Final answer
    x = 101,920.97

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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.