Home / 189,263.07-261,188.87-108,706.75

Finding the Fourth Proportional to 189,263.07, 261,188.87 and 108,706.75

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Solution

The fourth proportional to 189,263.07, 261,188.87 and 108,706.75 is: 150,018.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,263.07 : 261,188.87 = 108,706.75 : x
  2. Step 2: Convert to fraction form
    189,263.07/261,188.87 = 108,706.75/x
  3. Step 3: Cross multiply
    189,263.07x = 261,188.87 × 108,706.75
  4. Step 4: Simplify right side
    189,263.07x = 28,392,993,193.87
  5. Step 5: Solve for x
    x = 28,392,993,193.87/189,263.07
  6. Step 6: Final answer
    x = 150,018.67

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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.