Home / 100,827.20-151,240.80-74,583.20

Finding the Fourth Proportional to 100,827.20, 151,240.80 and 74,583.20

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Solution

The fourth proportional to 100,827.20, 151,240.80 and 74,583.20 is: 111,874.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,827.20 : 151,240.80 = 74,583.20 : x
  2. Step 2: Convert to fraction form
    100,827.20/151,240.80 = 74,583.20/x
  3. Step 3: Cross multiply
    100,827.20x = 151,240.80 × 74,583.20
  4. Step 4: Simplify right side
    100,827.20x = 11,280,022,834.56
  5. Step 5: Solve for x
    x = 11,280,022,834.56/100,827.20
  6. Step 6: Final answer
    x = 111,874.80

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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.