Home / 189,631.72-261,686.82-104,735.08

Finding the Fourth Proportional to 189,631.72, 261,686.82 and 104,735.08

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Solution

The fourth proportional to 189,631.72, 261,686.82 and 104,735.08 is: 144,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,631.72 : 261,686.82 = 104,735.08 : x
  2. Step 2: Convert to fraction form
    189,631.72/261,686.82 = 104,735.08/x
  3. Step 3: Cross multiply
    189,631.72x = 261,686.82 × 104,735.08
  4. Step 4: Simplify right side
    189,631.72x = 27,407,790,027.65
  5. Step 5: Solve for x
    x = 27,407,790,027.65/189,631.72
  6. Step 6: Final answer
    x = 144,531.67

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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.