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Finding the Fourth Proportional to 126,839, 175,035.67 and 70,249.16

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Solution

The fourth proportional to 126,839, 175,035.67 and 70,249.16 is: 96,942.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,839 : 175,035.67 = 70,249.16 : x
  2. Step 2: Convert to fraction form
    126,839/175,035.67 = 70,249.16/x
  3. Step 3: Cross multiply
    126,839x = 175,035.67 × 70,249.16
  4. Step 4: Simplify right side
    126,839x = 12,296,108,787.54
  5. Step 5: Solve for x
    x = 12,296,108,787.54/126,839
  6. Step 6: Final answer
    x = 96,942.65

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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.