Home / 118,844.20-178,266.30-100,181.80

Finding the Fourth Proportional to 118,844.20, 178,266.30 and 100,181.80

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Solution

The fourth proportional to 118,844.20, 178,266.30 and 100,181.80 is: 150,272.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,844.20 : 178,266.30 = 100,181.80 : x
  2. Step 2: Convert to fraction form
    118,844.20/178,266.30 = 100,181.80/x
  3. Step 3: Cross multiply
    118,844.20x = 178,266.30 × 100,181.80
  4. Step 4: Simplify right side
    118,844.20x = 17,859,038,813.34
  5. Step 5: Solve for x
    x = 17,859,038,813.34/118,844.20
  6. Step 6: Final answer
    x = 150,272.70

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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.