Home / 102,121.07-140,927.19-56,797.97

Finding the Fourth Proportional to 102,121.07, 140,927.19 and 56,797.97

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Solution

The fourth proportional to 102,121.07, 140,927.19 and 56,797.97 is: 78,381.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,121.07 : 140,927.19 = 56,797.97 : x
  2. Step 2: Convert to fraction form
    102,121.07/140,927.19 = 56,797.97/x
  3. Step 3: Cross multiply
    102,121.07x = 140,927.19 × 56,797.97
  4. Step 4: Simplify right side
    102,121.07x = 8,004,378,309.80
  5. Step 5: Solve for x
    x = 8,004,378,309.80/102,121.07
  6. Step 6: Final answer
    x = 78,381.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.