Home / 124,777.10-172,198.60-73,819.64

Finding the Fourth Proportional to 124,777.10, 172,198.60 and 73,819.64

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Solution

The fourth proportional to 124,777.10, 172,198.60 and 73,819.64 is: 101,874.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,777.10 : 172,198.60 = 73,819.64 : x
  2. Step 2: Convert to fraction form
    124,777.10/172,198.60 = 73,819.64/x
  3. Step 3: Cross multiply
    124,777.10x = 172,198.60 × 73,819.64
  4. Step 4: Simplify right side
    124,777.10x = 12,711,638,906.45
  5. Step 5: Solve for x
    x = 12,711,638,906.45/124,777.10
  6. Step 6: Final answer
    x = 101,874.77

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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.