Home / 196,455.40-271,141.06-115,902.70

Finding the Fourth Proportional to 196,455.40, 271,141.06 and 115,902.70

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Solution

The fourth proportional to 196,455.40, 271,141.06 and 115,902.70 is: 159,964.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,455.40 : 271,141.06 = 115,902.70 : x
  2. Step 2: Convert to fraction form
    196,455.40/271,141.06 = 115,902.70/x
  3. Step 3: Cross multiply
    196,455.40x = 271,141.06 × 115,902.70
  4. Step 4: Simplify right side
    196,455.40x = 31,425,980,934.86
  5. Step 5: Solve for x
    x = 31,425,980,934.86/196,455.40
  6. Step 6: Final answer
    x = 159,964.96

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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.