Home / 284,105.36-426,047.28-106,515.60

Finding the Fourth Proportional to 284,105.36, 426,047.28 and 106,515.60

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Solution

The fourth proportional to 284,105.36, 426,047.28 and 106,515.60 is: 159,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,105.36 : 426,047.28 = 106,515.60 : x
  2. Step 2: Convert to fraction form
    284,105.36/426,047.28 = 106,515.60/x
  3. Step 3: Cross multiply
    284,105.36x = 426,047.28 × 106,515.60
  4. Step 4: Simplify right side
    284,105.36x = 45,380,681,657.57
  5. Step 5: Solve for x
    x = 45,380,681,657.57/284,105.36
  6. Step 6: Final answer
    x = 159,731.87

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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.