Home / 112,949.20-169,313.60-53,768.96

Finding the Fourth Proportional to 112,949.20, 169,313.60 and 53,768.96

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Solution

The fourth proportional to 112,949.20, 169,313.60 and 53,768.96 is: 80,600.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,949.20 : 169,313.60 = 53,768.96 : x
  2. Step 2: Convert to fraction form
    112,949.20/169,313.60 = 53,768.96/x
  3. Step 3: Cross multiply
    112,949.20x = 169,313.60 × 53,768.96
  4. Step 4: Simplify right side
    112,949.20x = 9,103,816,185.86
  5. Step 5: Solve for x
    x = 9,103,816,185.86/112,949.20
  6. Step 6: Final answer
    x = 80,600.98

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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.