Home / 142,512.64-196,691.55-82,072.16

Finding the Fourth Proportional to 142,512.64, 196,691.55 and 82,072.16

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Solution

The fourth proportional to 142,512.64, 196,691.55 and 82,072.16 is: 113,273.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,512.64 : 196,691.55 = 82,072.16 : x
  2. Step 2: Convert to fraction form
    142,512.64/196,691.55 = 82,072.16/x
  3. Step 3: Cross multiply
    142,512.64x = 196,691.55 × 82,072.16
  4. Step 4: Simplify right side
    142,512.64x = 16,142,899,378.79
  5. Step 5: Solve for x
    x = 16,142,899,378.79/142,512.64
  6. Step 6: Final answer
    x = 113,273.46

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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.