Home / 189,856.62-262,007.38-104,976.72

Finding the Fourth Proportional to 189,856.62, 262,007.38 and 104,976.72

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Solution

The fourth proportional to 189,856.62, 262,007.38 and 104,976.72 is: 144,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,856.62 : 262,007.38 = 104,976.72 : x
  2. Step 2: Convert to fraction form
    189,856.62/262,007.38 = 104,976.72/x
  3. Step 3: Cross multiply
    189,856.62x = 262,007.38 × 104,976.72
  4. Step 4: Simplify right side
    189,856.62x = 27,504,675,368.19
  5. Step 5: Solve for x
    x = 27,504,675,368.19/189,856.62
  6. Step 6: Final answer
    x = 144,870.77

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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.