Home / 141,930.26-195,854.80-81,458.34

Finding the Fourth Proportional to 141,930.26, 195,854.80 and 81,458.34

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Solution

The fourth proportional to 141,930.26, 195,854.80 and 81,458.34 is: 112,407.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,930.26 : 195,854.80 = 81,458.34 : x
  2. Step 2: Convert to fraction form
    141,930.26/195,854.80 = 81,458.34/x
  3. Step 3: Cross multiply
    141,930.26x = 195,854.80 × 81,458.34
  4. Step 4: Simplify right side
    141,930.26x = 15,954,006,889.03
  5. Step 5: Solve for x
    x = 15,954,006,889.03/141,930.26
  6. Step 6: Final answer
    x = 112,407.37

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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.