Home / 100,821.58-151,246.21-34,243.84

Finding the Fourth Proportional to 100,821.58, 151,246.21 and 34,243.84

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Solution

The fourth proportional to 100,821.58, 151,246.21 and 34,243.84 is: 51,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,821.58 : 151,246.21 = 34,243.84 : x
  2. Step 2: Convert to fraction form
    100,821.58/151,246.21 = 34,243.84/x
  3. Step 3: Cross multiply
    100,821.58x = 151,246.21 × 34,243.84
  4. Step 4: Simplify right side
    100,821.58x = 5,179,250,259.62
  5. Step 5: Solve for x
    x = 5,179,250,259.62/100,821.58
  6. Step 6: Final answer
    x = 51,370.45

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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.