Home / 102,556.45-153,827.37-27,680.86

Finding the Fourth Proportional to 102,556.45, 153,827.37 and 27,680.86

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Solution

The fourth proportional to 102,556.45, 153,827.37 and 27,680.86 is: 41,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,556.45 : 153,827.37 = 27,680.86 : x
  2. Step 2: Convert to fraction form
    102,556.45/153,827.37 = 27,680.86/x
  3. Step 3: Cross multiply
    102,556.45x = 153,827.37 × 27,680.86
  4. Step 4: Simplify right side
    102,556.45x = 4,258,073,893.14
  5. Step 5: Solve for x
    x = 4,258,073,893.14/102,556.45
  6. Step 6: Final answer
    x = 41,519.32

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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.