Home / 277,688.10-416,487.60-100,103.70

Finding the Fourth Proportional to 277,688.10, 416,487.60 and 100,103.70

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Solution

The fourth proportional to 277,688.10, 416,487.60 and 100,103.70 is: 150,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,688.10 : 416,487.60 = 100,103.70 : x
  2. Step 2: Convert to fraction form
    277,688.10/416,487.60 = 100,103.70/x
  3. Step 3: Cross multiply
    277,688.10x = 416,487.60 × 100,103.70
  4. Step 4: Simplify right side
    277,688.10x = 41,691,949,764.12
  5. Step 5: Solve for x
    x = 41,691,949,764.12/277,688.10
  6. Step 6: Final answer
    x = 150,139.49

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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.