Home / 105,115.80-157,669.26-48,936.60

Finding the Fourth Proportional to 105,115.80, 157,669.26 and 48,936.60

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Solution

The fourth proportional to 105,115.80, 157,669.26 and 48,936.60 is: 73,402.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,115.80 : 157,669.26 = 48,936.60 : x
  2. Step 2: Convert to fraction form
    105,115.80/157,669.26 = 48,936.60/x
  3. Step 3: Cross multiply
    105,115.80x = 157,669.26 × 48,936.60
  4. Step 4: Simplify right side
    105,115.80x = 7,715,797,508.92
  5. Step 5: Solve for x
    x = 7,715,797,508.92/105,115.80
  6. Step 6: Final answer
    x = 73,402.83

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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.