Home / 206,320.86-309,416.58-79,952.36

Finding the Fourth Proportional to 206,320.86, 309,416.58 and 79,952.36

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Solution

The fourth proportional to 206,320.86, 309,416.58 and 79,952.36 is: 119,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,320.86 : 309,416.58 = 79,952.36 : x
  2. Step 2: Convert to fraction form
    206,320.86/309,416.58 = 79,952.36/x
  3. Step 3: Cross multiply
    206,320.86x = 309,416.58 × 79,952.36
  4. Step 4: Simplify right side
    206,320.86x = 24,738,584,247.05
  5. Step 5: Solve for x
    x = 24,738,584,247.05/206,320.86
  6. Step 6: Final answer
    x = 119,903.46

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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.