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Finding the Fourth Proportional to 163,499.88, 245,343.96 and 68,721.96

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Solution

The fourth proportional to 163,499.88, 245,343.96 and 68,721.96 is: 103,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,499.88 : 245,343.96 = 68,721.96 : x
  2. Step 2: Convert to fraction form
    163,499.88/245,343.96 = 68,721.96/x
  3. Step 3: Cross multiply
    163,499.88x = 245,343.96 × 68,721.96
  4. Step 4: Simplify right side
    163,499.88x = 16,860,517,805.36
  5. Step 5: Solve for x
    x = 16,860,517,805.36/163,499.88
  6. Step 6: Final answer
    x = 103,122.51

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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.