Home / 142,674.39-196,846.07-82,236.78

Finding the Fourth Proportional to 142,674.39, 196,846.07 and 82,236.78

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Solution

The fourth proportional to 142,674.39, 196,846.07 and 82,236.78 is: 113,461.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,674.39 : 196,846.07 = 82,236.78 : x
  2. Step 2: Convert to fraction form
    142,674.39/196,846.07 = 82,236.78/x
  3. Step 3: Cross multiply
    142,674.39x = 196,846.07 × 82,236.78
  4. Step 4: Simplify right side
    142,674.39x = 16,187,986,541.27
  5. Step 5: Solve for x
    x = 16,187,986,541.27/142,674.39
  6. Step 6: Final answer
    x = 113,461.05

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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.