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Finding the Fourth Proportional to 189,807, 261,910.96 and 104,912.52

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Solution

The fourth proportional to 189,807, 261,910.96 and 104,912.52 is: 144,766.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,807 : 261,910.96 = 104,912.52 : x
  2. Step 2: Convert to fraction form
    189,807/261,910.96 = 104,912.52/x
  3. Step 3: Cross multiply
    189,807x = 261,910.96 × 104,912.52
  4. Step 4: Simplify right side
    189,807x = 27,477,738,829.22
  5. Step 5: Solve for x
    x = 27,477,738,829.22/189,807
  6. Step 6: Final answer
    x = 144,766.73

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1.5x scale

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.