Home / 195,816.71-270,206.72-115,239.42

Finding the Fourth Proportional to 195,816.71, 270,206.72 and 115,239.42

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Solution

The fourth proportional to 195,816.71, 270,206.72 and 115,239.42 is: 159,018.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,816.71 : 270,206.72 = 115,239.42 : x
  2. Step 2: Convert to fraction form
    195,816.71/270,206.72 = 115,239.42/x
  3. Step 3: Cross multiply
    195,816.71x = 270,206.72 × 115,239.42
  4. Step 4: Simplify right side
    195,816.71x = 31,138,465,116.71
  5. Step 5: Solve for x
    x = 31,138,465,116.71/195,816.71
  6. Step 6: Final answer
    x = 159,018.43

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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.