Home / 206,036.40-309,089.49-71,063.82

Finding the Fourth Proportional to 206,036.40, 309,089.49 and 71,063.82

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Solution

The fourth proportional to 206,036.40, 309,089.49 and 71,063.82 is: 106,607.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,036.40 : 309,089.49 = 71,063.82 : x
  2. Step 2: Convert to fraction form
    206,036.40/309,089.49 = 71,063.82/x
  3. Step 3: Cross multiply
    206,036.40x = 309,089.49 × 71,063.82
  4. Step 4: Simplify right side
    206,036.40x = 21,965,079,881.25
  5. Step 5: Solve for x
    x = 21,965,079,881.25/206,036.40
  6. Step 6: Final answer
    x = 106,607.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.