Home / 196,639.47-271,383.28-120,203.30

Finding the Fourth Proportional to 196,639.47, 271,383.28 and 120,203.30

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Solution

The fourth proportional to 196,639.47, 271,383.28 and 120,203.30 is: 165,893.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,639.47 : 271,383.28 = 120,203.30 : x
  2. Step 2: Convert to fraction form
    196,639.47/271,383.28 = 120,203.30/x
  3. Step 3: Cross multiply
    196,639.47x = 271,383.28 × 120,203.30
  4. Step 4: Simplify right side
    196,639.47x = 32,621,166,198.77
  5. Step 5: Solve for x
    x = 32,621,166,198.77/196,639.47
  6. Step 6: Final answer
    x = 165,893.28

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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.