Home / 142,807.74-197,052.39-82,380.66

Finding the Fourth Proportional to 142,807.74, 197,052.39 and 82,380.66

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Solution

The fourth proportional to 142,807.74, 197,052.39 and 82,380.66 is: 113,672.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,807.74 : 197,052.39 = 82,380.66 : x
  2. Step 2: Convert to fraction form
    142,807.74/197,052.39 = 82,380.66/x
  3. Step 3: Cross multiply
    142,807.74x = 197,052.39 × 82,380.66
  4. Step 4: Simplify right side
    142,807.74x = 16,233,305,942.78
  5. Step 5: Solve for x
    x = 16,233,305,942.78/142,807.74
  6. Step 6: Final answer
    x = 113,672.45

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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.