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Finding the Fourth Proportional to 126,840, 175,037.05 and 70,250.16

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Solution

The fourth proportional to 126,840, 175,037.05 and 70,250.16 is: 96,944.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,840 : 175,037.05 = 70,250.16 : x
  2. Step 2: Convert to fraction form
    126,840/175,037.05 = 70,250.16/x
  3. Step 3: Cross multiply
    126,840x = 175,037.05 × 70,250.16
  4. Step 4: Simplify right side
    126,840x = 12,296,380,768.43
  5. Step 5: Solve for x
    x = 12,296,380,768.43/126,840
  6. Step 6: Final answer
    x = 96,944.03

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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.