Home / 118,639.13-177,960.92-55,441.91

Finding the Fourth Proportional to 118,639.13, 177,960.92 and 55,441.91

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Solution

The fourth proportional to 118,639.13, 177,960.92 and 55,441.91 is: 83,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,639.13 : 177,960.92 = 55,441.91 : x
  2. Step 2: Convert to fraction form
    118,639.13/177,960.92 = 55,441.91/x
  3. Step 3: Cross multiply
    118,639.13x = 177,960.92 × 55,441.91
  4. Step 4: Simplify right side
    118,639.13x = 9,866,493,477.85
  5. Step 5: Solve for x
    x = 9,866,493,477.85/118,639.13
  6. Step 6: Final answer
    x = 83,163.91

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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.