Home / 189,701.72-261,765.97-113,206.67

Finding the Fourth Proportional to 189,701.72, 261,765.97 and 113,206.67

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Solution

The fourth proportional to 189,701.72, 261,765.97 and 113,206.67 is: 156,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,701.72 : 261,765.97 = 113,206.67 : x
  2. Step 2: Convert to fraction form
    189,701.72/261,765.97 = 113,206.67/x
  3. Step 3: Cross multiply
    189,701.72x = 261,765.97 × 113,206.67
  4. Step 4: Simplify right side
    189,701.72x = 29,633,653,783.02
  5. Step 5: Solve for x
    x = 29,633,653,783.02/189,701.72
  6. Step 6: Final answer
    x = 156,211.83

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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.