Home / 189,675.75-261,752.34-109,101.20

Finding the Fourth Proportional to 189,675.75, 261,752.34 and 109,101.20

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Solution

The fourth proportional to 189,675.75, 261,752.34 and 109,101.20 is: 150,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,675.75 : 261,752.34 = 109,101.20 : x
  2. Step 2: Convert to fraction form
    189,675.75/261,752.34 = 109,101.20/x
  3. Step 3: Cross multiply
    189,675.75x = 261,752.34 × 109,101.20
  4. Step 4: Simplify right side
    189,675.75x = 28,557,494,396.81
  5. Step 5: Solve for x
    x = 28,557,494,396.81/189,675.75
  6. Step 6: Final answer
    x = 150,559.54

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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.