Home / 118,948.90-178,423.62-40,118.49

Finding the Fourth Proportional to 118,948.90, 178,423.62 and 40,118.49

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Solution

The fourth proportional to 118,948.90, 178,423.62 and 40,118.49 is: 60,177.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,948.90 : 178,423.62 = 40,118.49 : x
  2. Step 2: Convert to fraction form
    118,948.90/178,423.62 = 40,118.49/x
  3. Step 3: Cross multiply
    118,948.90x = 178,423.62 × 40,118.49
  4. Step 4: Simplify right side
    118,948.90x = 7,158,086,214.73
  5. Step 5: Solve for x
    x = 7,158,086,214.73/118,948.90
  6. Step 6: Final answer
    x = 60,177.83

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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.