Home / 203,135.04-304,817.76-109,638.72

Finding the Fourth Proportional to 203,135.04, 304,817.76 and 109,638.72

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Solution

The fourth proportional to 203,135.04, 304,817.76 and 109,638.72 is: 164,520.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,135.04 : 304,817.76 = 109,638.72 : x
  2. Step 2: Convert to fraction form
    203,135.04/304,817.76 = 109,638.72/x
  3. Step 3: Cross multiply
    203,135.04x = 304,817.76 × 109,638.72
  4. Step 4: Simplify right side
    203,135.04x = 33,419,829,039.67
  5. Step 5: Solve for x
    x = 33,419,829,039.67/203,135.04
  6. Step 6: Final answer
    x = 164,520.26

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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.