Home / 142,361.26-196,467.16-81,930.58

Finding the Fourth Proportional to 142,361.26, 196,467.16 and 81,930.58

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Solution

The fourth proportional to 142,361.26, 196,467.16 and 81,930.58 is: 113,069.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,361.26 : 196,467.16 = 81,930.58 : x
  2. Step 2: Convert to fraction form
    142,361.26/196,467.16 = 81,930.58/x
  3. Step 3: Cross multiply
    142,361.26x = 196,467.16 × 81,930.58
  4. Step 4: Simplify right side
    142,361.26x = 16,096,668,369.75
  5. Step 5: Solve for x
    x = 16,096,668,369.75/142,361.26
  6. Step 6: Final answer
    x = 113,069.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.