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Finding the Fourth Proportional to 127,100.70, 175,393.02 and 69,738.70

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Solution

The fourth proportional to 127,100.70, 175,393.02 and 69,738.70 is: 96,236.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,100.70 : 175,393.02 = 69,738.70 : x
  2. Step 2: Convert to fraction form
    127,100.70/175,393.02 = 69,738.70/x
  3. Step 3: Cross multiply
    127,100.70x = 175,393.02 × 69,738.70
  4. Step 4: Simplify right side
    127,100.70x = 12,231,681,203.87
  5. Step 5: Solve for x
    x = 12,231,681,203.87/127,100.70
  6. Step 6: Final answer
    x = 96,236.14

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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.