Home / 142,587.20-196,791.08-82,146.08

Finding the Fourth Proportional to 142,587.20, 196,791.08 and 82,146.08

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Solution

The fourth proportional to 142,587.20, 196,791.08 and 82,146.08 is: 113,373.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,587.20 : 196,791.08 = 82,146.08 : x
  2. Step 2: Convert to fraction form
    142,587.20/196,791.08 = 82,146.08/x
  3. Step 3: Cross multiply
    142,587.20x = 196,791.08 × 82,146.08
  4. Step 4: Simplify right side
    142,587.20x = 16,165,615,800.97
  5. Step 5: Solve for x
    x = 16,165,615,800.97/142,587.20
  6. Step 6: Final answer
    x = 113,373.54

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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.