Home / 118,715.13-178,106.07-47,687.64

Finding the Fourth Proportional to 118,715.13, 178,106.07 and 47,687.64

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Solution

The fourth proportional to 118,715.13, 178,106.07 and 47,687.64 is: 71,544.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,715.13 : 178,106.07 = 47,687.64 : x
  2. Step 2: Convert to fraction form
    118,715.13/178,106.07 = 47,687.64/x
  3. Step 3: Cross multiply
    118,715.13x = 178,106.07 × 47,687.64
  4. Step 4: Simplify right side
    118,715.13x = 8,493,458,147.97
  5. Step 5: Solve for x
    x = 8,493,458,147.97/118,715.13
  6. Step 6: Final answer
    x = 71,544.87

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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.