Home / 137,777.58-190,110.42-81,181.26

Finding the Fourth Proportional to 137,777.58, 190,110.42 and 81,181.26

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Solution

The fourth proportional to 137,777.58, 190,110.42 and 81,181.26 is: 112,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,777.58 : 190,110.42 = 81,181.26 : x
  2. Step 2: Convert to fraction form
    137,777.58/190,110.42 = 81,181.26/x
  3. Step 3: Cross multiply
    137,777.58x = 190,110.42 × 81,181.26
  4. Step 4: Simplify right side
    137,777.58x = 15,433,403,434.73
  5. Step 5: Solve for x
    x = 15,433,403,434.73/137,777.58
  6. Step 6: Final answer
    x = 112,016.80

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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.