Home / 142,599.20-196,791.52-82,165.20

Finding the Fourth Proportional to 142,599.20, 196,791.52 and 82,165.20

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Solution

The fourth proportional to 142,599.20, 196,791.52 and 82,165.20 is: 113,390.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,599.20 : 196,791.52 = 82,165.20 : x
  2. Step 2: Convert to fraction form
    142,599.20/196,791.52 = 82,165.20/x
  3. Step 3: Cross multiply
    142,599.20x = 196,791.52 × 82,165.20
  4. Step 4: Simplify right side
    142,599.20x = 16,169,414,599.10
  5. Step 5: Solve for x
    x = 16,169,414,599.10/142,599.20
  6. Step 6: Final answer
    x = 113,390.64

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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.