Home / 102,556.26-153,742.92-55,196.76

Finding the Fourth Proportional to 102,556.26, 153,742.92 and 55,196.76

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Solution

The fourth proportional to 102,556.26, 153,742.92 and 55,196.76 is: 82,745.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,556.26 : 153,742.92 = 55,196.76 : x
  2. Step 2: Convert to fraction form
    102,556.26/153,742.92 = 55,196.76/x
  3. Step 3: Cross multiply
    102,556.26x = 153,742.92 × 55,196.76
  4. Step 4: Simplify right side
    102,556.26x = 8,486,111,056.94
  5. Step 5: Solve for x
    x = 8,486,111,056.94/102,556.26
  6. Step 6: Final answer
    x = 82,745.91

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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.