Home / 196,356.28-270,982.50-115,831

Finding the Fourth Proportional to 196,356.28, 270,982.50 and 115,831

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Solution

The fourth proportional to 196,356.28, 270,982.50 and 115,831 is: 159,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,356.28 : 270,982.50 = 115,831 : x
  2. Step 2: Convert to fraction form
    196,356.28/270,982.50 = 115,831/x
  3. Step 3: Cross multiply
    196,356.28x = 270,982.50 × 115,831
  4. Step 4: Simplify right side
    196,356.28x = 31,388,173,957.50
  5. Step 5: Solve for x
    x = 31,388,173,957.50/196,356.28
  6. Step 6: Final answer
    x = 159,853.17

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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.