Home / 105,640.45-158,522.97-39,127.30

Finding the Fourth Proportional to 105,640.45, 158,522.97 and 39,127.30

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Solution

The fourth proportional to 105,640.45, 158,522.97 and 39,127.30 is: 58,714.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,640.45 : 158,522.97 = 39,127.30 : x
  2. Step 2: Convert to fraction form
    105,640.45/158,522.97 = 39,127.30/x
  3. Step 3: Cross multiply
    105,640.45x = 158,522.97 × 39,127.30
  4. Step 4: Simplify right side
    105,640.45x = 6,202,576,446.19
  5. Step 5: Solve for x
    x = 6,202,576,446.19/105,640.45
  6. Step 6: Final answer
    x = 58,714.03

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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.