Home / 190,281.30-285,215.94-123,768.96

Finding the Fourth Proportional to 190,281.30, 285,215.94 and 123,768.96

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Solution

The fourth proportional to 190,281.30, 285,215.94 and 123,768.96 is: 185,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,281.30 : 285,215.94 = 123,768.96 : x
  2. Step 2: Convert to fraction form
    190,281.30/285,215.94 = 123,768.96/x
  3. Step 3: Cross multiply
    190,281.30x = 285,215.94 × 123,768.96
  4. Step 4: Simplify right side
    190,281.30x = 35,300,880,269.22
  5. Step 5: Solve for x
    x = 35,300,880,269.22/190,281.30
  6. Step 6: Final answer
    x = 185,519.44

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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.