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Finding the Fourth Proportional to 102,996.80, 154,495.20 and 101,247.20

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Solution

The fourth proportional to 102,996.80, 154,495.20 and 101,247.20 is: 151,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,996.80 : 154,495.20 = 101,247.20 : x
  2. Step 2: Convert to fraction form
    102,996.80/154,495.20 = 101,247.20/x
  3. Step 3: Cross multiply
    102,996.80x = 154,495.20 × 101,247.20
  4. Step 4: Simplify right side
    102,996.80x = 15,642,206,413.44
  5. Step 5: Solve for x
    x = 15,642,206,413.44/102,996.80
  6. Step 6: Final answer
    x = 151,870.80

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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.