Home / 189,889.27-262,048.95-105,007.75

Finding the Fourth Proportional to 189,889.27, 262,048.95 and 105,007.75

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Solution

The fourth proportional to 189,889.27, 262,048.95 and 105,007.75 is: 144,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,889.27 : 262,048.95 = 105,007.75 : x
  2. Step 2: Convert to fraction form
    189,889.27/262,048.95 = 105,007.75/x
  3. Step 3: Cross multiply
    189,889.27x = 262,048.95 × 105,007.75
  4. Step 4: Simplify right side
    189,889.27x = 27,517,169,974.24
  5. Step 5: Solve for x
    x = 27,517,169,974.24/189,889.27
  6. Step 6: Final answer
    x = 144,911.67

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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.