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Finding the Fourth Proportional to 127,197.53, 175,546.54 and 72,754.80

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Solution

The fourth proportional to 127,197.53, 175,546.54 and 72,754.80 is: 100,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,197.53 : 175,546.54 = 72,754.80 : x
  2. Step 2: Convert to fraction form
    127,197.53/175,546.54 = 72,754.80/x
  3. Step 3: Cross multiply
    127,197.53x = 175,546.54 × 72,754.80
  4. Step 4: Simplify right side
    127,197.53x = 12,771,853,408.39
  5. Step 5: Solve for x
    x = 12,771,853,408.39/127,197.53
  6. Step 6: Final answer
    x = 100,409.60

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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.