Home / 255,724.80-383,586.66-68,736.30

Finding the Fourth Proportional to 255,724.80, 383,586.66 and 68,736.30

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Solution

The fourth proportional to 255,724.80, 383,586.66 and 68,736.30 is: 103,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,724.80 : 383,586.66 = 68,736.30 : x
  2. Step 2: Convert to fraction form
    255,724.80/383,586.66 = 68,736.30/x
  3. Step 3: Cross multiply
    255,724.80x = 383,586.66 × 68,736.30
  4. Step 4: Simplify right side
    255,724.80x = 26,366,327,737.76
  5. Step 5: Solve for x
    x = 26,366,327,737.76/255,724.80
  6. Step 6: Final answer
    x = 103,104.30

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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.