Home / 205,586.55-308,381.31-72,469.26

Finding the Fourth Proportional to 205,586.55, 308,381.31 and 72,469.26

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Solution

The fourth proportional to 205,586.55, 308,381.31 and 72,469.26 is: 108,704.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,586.55 : 308,381.31 = 72,469.26 : x
  2. Step 2: Convert to fraction form
    205,586.55/308,381.31 = 72,469.26/x
  3. Step 3: Cross multiply
    205,586.55x = 308,381.31 × 72,469.26
  4. Step 4: Simplify right side
    205,586.55x = 22,348,165,333.53
  5. Step 5: Solve for x
    x = 22,348,165,333.53/205,586.55
  6. Step 6: Final answer
    x = 108,704.41

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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.