Home / 142,531.20-196,713.92-82,090.08

Finding the Fourth Proportional to 142,531.20, 196,713.92 and 82,090.08

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Solution

The fourth proportional to 142,531.20, 196,713.92 and 82,090.08 is: 113,296.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,531.20 : 196,713.92 = 82,090.08 : x
  2. Step 2: Convert to fraction form
    142,531.20/196,713.92 = 82,090.08/x
  3. Step 3: Cross multiply
    142,531.20x = 196,713.92 × 82,090.08
  4. Step 4: Simplify right side
    142,531.20x = 16,148,261,635.14
  5. Step 5: Solve for x
    x = 16,148,261,635.14/142,531.20
  6. Step 6: Final answer
    x = 113,296.33

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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.