Home / 142,022.25-195,996.96-81,611.82

Finding the Fourth Proportional to 142,022.25, 195,996.96 and 81,611.82

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Solution

The fourth proportional to 142,022.25, 195,996.96 and 81,611.82 is: 112,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,022.25 : 195,996.96 = 81,611.82 : x
  2. Step 2: Convert to fraction form
    142,022.25/195,996.96 = 81,611.82/x
  3. Step 3: Cross multiply
    142,022.25x = 195,996.96 × 81,611.82
  4. Step 4: Simplify right side
    142,022.25x = 15,995,668,620.07
  5. Step 5: Solve for x
    x = 15,995,668,620.07/142,022.25
  6. Step 6: Final answer
    x = 112,627.91

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1.5x scale

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.