Home / 141,615.26-195,406.19-81,174.78

Finding the Fourth Proportional to 141,615.26, 195,406.19 and 81,174.78

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Solution

The fourth proportional to 141,615.26, 195,406.19 and 81,174.78 is: 112,008.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,615.26 : 195,406.19 = 81,174.78 : x
  2. Step 2: Convert to fraction form
    141,615.26/195,406.19 = 81,174.78/x
  3. Step 3: Cross multiply
    141,615.26x = 195,406.19 × 81,174.78
  4. Step 4: Simplify right side
    141,615.26x = 15,862,054,483.89
  5. Step 5: Solve for x
    x = 15,862,054,483.89/141,615.26
  6. Step 6: Final answer
    x = 112,008.09

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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.