Home / 189,947.08-262,131.96-105,065.56

Finding the Fourth Proportional to 189,947.08, 262,131.96 and 105,065.56

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Solution

The fourth proportional to 189,947.08, 262,131.96 and 105,065.56 is: 144,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,947.08 : 262,131.96 = 105,065.56 : x
  2. Step 2: Convert to fraction form
    189,947.08/262,131.96 = 105,065.56/x
  3. Step 3: Cross multiply
    189,947.08x = 262,131.96 × 105,065.56
  4. Step 4: Simplify right side
    189,947.08x = 27,541,041,171.30
  5. Step 5: Solve for x
    x = 27,541,041,171.30/189,947.08
  6. Step 6: Final answer
    x = 144,993.23

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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.