Home / 151,704.10-227,556.15-81,720.10

Finding the Fourth Proportional to 151,704.10, 227,556.15 and 81,720.10

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Solution

The fourth proportional to 151,704.10, 227,556.15 and 81,720.10 is: 122,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,704.10 : 227,556.15 = 81,720.10 : x
  2. Step 2: Convert to fraction form
    151,704.10/227,556.15 = 81,720.10/x
  3. Step 3: Cross multiply
    151,704.10x = 227,556.15 × 81,720.10
  4. Step 4: Simplify right side
    151,704.10x = 18,595,911,333.62
  5. Step 5: Solve for x
    x = 18,595,911,333.62/151,704.10
  6. Step 6: Final answer
    x = 122,580.15

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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.