Home / 224,104.50-309,255.21-122,127.78

Finding the Fourth Proportional to 224,104.50, 309,255.21 and 122,127.78

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Solution

The fourth proportional to 224,104.50, 309,255.21 and 122,127.78 is: 168,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,104.50 : 309,255.21 = 122,127.78 : x
  2. Step 2: Convert to fraction form
    224,104.50/309,255.21 = 122,127.78/x
  3. Step 3: Cross multiply
    224,104.50x = 309,255.21 × 122,127.78
  4. Step 4: Simplify right side
    224,104.50x = 37,768,652,250.73
  5. Step 5: Solve for x
    x = 37,768,652,250.73/224,104.50
  6. Step 6: Final answer
    x = 168,531.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.