Home / 137,884.32-190,250.82-80,497.58

Finding the Fourth Proportional to 137,884.32, 190,250.82 and 80,497.58

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Solution

The fourth proportional to 137,884.32, 190,250.82 and 80,497.58 is: 111,069.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,884.32 : 190,250.82 = 80,497.58 : x
  2. Step 2: Convert to fraction form
    137,884.32/190,250.82 = 80,497.58/x
  3. Step 3: Cross multiply
    137,884.32x = 190,250.82 × 80,497.58
  4. Step 4: Simplify right side
    137,884.32x = 15,314,729,651.76
  5. Step 5: Solve for x
    x = 15,314,729,651.76/137,884.32
  6. Step 6: Final answer
    x = 111,069.41

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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.