Home / 149,087.58-205,742.19-81,106.03

Finding the Fourth Proportional to 149,087.58, 205,742.19 and 81,106.03

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Solution

The fourth proportional to 149,087.58, 205,742.19 and 81,106.03 is: 111,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,087.58 : 205,742.19 = 81,106.03 : x
  2. Step 2: Convert to fraction form
    149,087.58/205,742.19 = 81,106.03/x
  3. Step 3: Cross multiply
    149,087.58x = 205,742.19 × 81,106.03
  4. Step 4: Simplify right side
    149,087.58x = 16,686,932,234.41
  5. Step 5: Solve for x
    x = 16,686,932,234.41/149,087.58
  6. Step 6: Final answer
    x = 111,927.05

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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.