Home / 102,697.28-141,708.22-57,369.65

Finding the Fourth Proportional to 102,697.28, 141,708.22 and 57,369.65

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Solution

The fourth proportional to 102,697.28, 141,708.22 and 57,369.65 is: 79,162.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,697.28 : 141,708.22 = 57,369.65 : x
  2. Step 2: Convert to fraction form
    102,697.28/141,708.22 = 57,369.65/x
  3. Step 3: Cross multiply
    102,697.28x = 141,708.22 × 57,369.65
  4. Step 4: Simplify right side
    102,697.28x = 8,129,751,194.37
  5. Step 5: Solve for x
    x = 8,129,751,194.37/102,697.28
  6. Step 6: Final answer
    x = 79,162.29

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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.