Home / 118,975.88-178,458.68-40,089.80

Finding the Fourth Proportional to 118,975.88, 178,458.68 and 40,089.80

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Solution

The fourth proportional to 118,975.88, 178,458.68 and 40,089.80 is: 60,132.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,975.88 : 178,458.68 = 40,089.80 : x
  2. Step 2: Convert to fraction form
    118,975.88/178,458.68 = 40,089.80/x
  3. Step 3: Cross multiply
    118,975.88x = 178,458.68 × 40,089.80
  4. Step 4: Simplify right side
    118,975.88x = 7,154,372,789.46
  5. Step 5: Solve for x
    x = 7,154,372,789.46/118,975.88
  6. Step 6: Final answer
    x = 60,132.97

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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.