Home / 205,856.30-308,872.76-79,585.23

Finding the Fourth Proportional to 205,856.30, 308,872.76 and 79,585.23

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Solution

The fourth proportional to 205,856.30, 308,872.76 and 79,585.23 is: 119,411.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,856.30 : 308,872.76 = 79,585.23 : x
  2. Step 2: Convert to fraction form
    205,856.30/308,872.76 = 79,585.23/x
  3. Step 3: Cross multiply
    205,856.30x = 308,872.76 × 79,585.23
  4. Step 4: Simplify right side
    205,856.30x = 24,581,709,645.33
  5. Step 5: Solve for x
    x = 24,581,709,645.33/205,856.30
  6. Step 6: Final answer
    x = 119,411.99

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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.