Home / 189,021.73-260,850.63-104,138.59

Finding the Fourth Proportional to 189,021.73, 260,850.63 and 104,138.59

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Solution

The fourth proportional to 189,021.73, 260,850.63 and 104,138.59 is: 143,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,021.73 : 260,850.63 = 104,138.59 : x
  2. Step 2: Convert to fraction form
    189,021.73/260,850.63 = 104,138.59/x
  3. Step 3: Cross multiply
    189,021.73x = 260,850.63 × 104,138.59
  4. Step 4: Simplify right side
    189,021.73x = 27,164,616,808.81
  5. Step 5: Solve for x
    x = 27,164,616,808.81/189,021.73
  6. Step 6: Final answer
    x = 143,711.61

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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.