Home / 196,414.24-271,042.32-111,520

Finding the Fourth Proportional to 196,414.24, 271,042.32 and 111,520

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Solution

The fourth proportional to 196,414.24, 271,042.32 and 111,520 is: 153,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,414.24 : 271,042.32 = 111,520 : x
  2. Step 2: Convert to fraction form
    196,414.24/271,042.32 = 111,520/x
  3. Step 3: Cross multiply
    196,414.24x = 271,042.32 × 111,520
  4. Step 4: Simplify right side
    196,414.24x = 30,226,639,526.40
  5. Step 5: Solve for x
    x = 30,226,639,526.40/196,414.24
  6. Step 6: Final answer
    x = 153,892.30

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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.