Home / 142,588.32-196,723.68-82,157.40

Finding the Fourth Proportional to 142,588.32, 196,723.68 and 82,157.40

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Solution

The fourth proportional to 142,588.32, 196,723.68 and 82,157.40 is: 113,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,588.32 : 196,723.68 = 82,157.40 : x
  2. Step 2: Convert to fraction form
    142,588.32/196,723.68 = 82,157.40/x
  3. Step 3: Cross multiply
    142,588.32x = 196,723.68 × 82,157.40
  4. Step 4: Simplify right side
    142,588.32x = 16,162,306,067.23
  5. Step 5: Solve for x
    x = 16,162,306,067.23/142,588.32
  6. Step 6: Final answer
    x = 113,349.44

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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.