Home / 115,221.50-172,900.29-48,657.32

Finding the Fourth Proportional to 115,221.50, 172,900.29 and 48,657.32

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Solution

The fourth proportional to 115,221.50, 172,900.29 and 48,657.32 is: 73,014.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,221.50 : 172,900.29 = 48,657.32 : x
  2. Step 2: Convert to fraction form
    115,221.50/172,900.29 = 48,657.32/x
  3. Step 3: Cross multiply
    115,221.50x = 172,900.29 × 48,657.32
  4. Step 4: Simplify right side
    115,221.50x = 8,412,864,738.62
  5. Step 5: Solve for x
    x = 8,412,864,738.62/115,221.50
  6. Step 6: Final answer
    x = 73,014.71

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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.