Home / 118,902.55-178,351.77-40,016.78

Finding the Fourth Proportional to 118,902.55, 178,351.77 and 40,016.78

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Solution

The fourth proportional to 118,902.55, 178,351.77 and 40,016.78 is: 60,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,902.55 : 178,351.77 = 40,016.78 : x
  2. Step 2: Convert to fraction form
    118,902.55/178,351.77 = 40,016.78/x
  3. Step 3: Cross multiply
    118,902.55x = 178,351.77 × 40,016.78
  4. Step 4: Simplify right side
    118,902.55x = 7,137,063,096.82
  5. Step 5: Solve for x
    x = 7,137,063,096.82/118,902.55
  6. Step 6: Final answer
    x = 60,024.47

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1.5x scale

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.