Home / 135,538.53-203,086.04-82,068.50

Finding the Fourth Proportional to 135,538.53, 203,086.04 and 82,068.50

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Solution

The fourth proportional to 135,538.53, 203,086.04 and 82,068.50 is: 122,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,538.53 : 203,086.04 = 82,068.50 : x
  2. Step 2: Convert to fraction form
    135,538.53/203,086.04 = 82,068.50/x
  3. Step 3: Cross multiply
    135,538.53x = 203,086.04 × 82,068.50
  4. Step 4: Simplify right side
    135,538.53x = 16,666,965,247.97
  5. Step 5: Solve for x
    x = 16,666,965,247.97/135,538.53
  6. Step 6: Final answer
    x = 122,968.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.