Home / 195,974.50-270,436.98-115,405.42

Finding the Fourth Proportional to 195,974.50, 270,436.98 and 115,405.42

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Solution

The fourth proportional to 195,974.50, 270,436.98 and 115,405.42 is: 159,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,974.50 : 270,436.98 = 115,405.42 : x
  2. Step 2: Convert to fraction form
    195,974.50/270,436.98 = 115,405.42/x
  3. Step 3: Cross multiply
    195,974.50x = 270,436.98 × 115,405.42
  4. Step 4: Simplify right side
    195,974.50x = 31,209,893,260.43
  5. Step 5: Solve for x
    x = 31,209,893,260.43/195,974.50
  6. Step 6: Final answer
    x = 159,254.87

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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.