Home / 115,311.56-172,974.62-48,742.92

Finding the Fourth Proportional to 115,311.56, 172,974.62 and 48,742.92

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Solution

The fourth proportional to 115,311.56, 172,974.62 and 48,742.92 is: 73,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,311.56 : 172,974.62 = 48,742.92 : x
  2. Step 2: Convert to fraction form
    115,311.56/172,974.62 = 48,742.92/x
  3. Step 3: Cross multiply
    115,311.56x = 172,974.62 × 48,742.92
  4. Step 4: Simplify right side
    115,311.56x = 8,431,288,186.55
  5. Step 5: Solve for x
    x = 8,431,288,186.55/115,311.56
  6. Step 6: Final answer
    x = 73,117.46

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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.