Home / 206,095.60-309,086.30-72,958.36

Finding the Fourth Proportional to 206,095.60, 309,086.30 and 72,958.36

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Solution

The fourth proportional to 206,095.60, 309,086.30 and 72,958.36 is: 109,417.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,095.60 : 309,086.30 = 72,958.36 : x
  2. Step 2: Convert to fraction form
    206,095.60/309,086.30 = 72,958.36/x
  3. Step 3: Cross multiply
    206,095.60x = 309,086.30 × 72,958.36
  4. Step 4: Simplify right side
    206,095.60x = 22,550,429,546.47
  5. Step 5: Solve for x
    x = 22,550,429,546.47/206,095.60
  6. Step 6: Final answer
    x = 109,417.33

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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.