Home / 189,947.43-262,017.99-120,909.24

Finding the Fourth Proportional to 189,947.43, 262,017.99 and 120,909.24

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Solution

The fourth proportional to 189,947.43, 262,017.99 and 120,909.24 is: 166,785.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,947.43 : 262,017.99 = 120,909.24 : x
  2. Step 2: Convert to fraction form
    189,947.43/262,017.99 = 120,909.24/x
  3. Step 3: Cross multiply
    189,947.43x = 262,017.99 × 120,909.24
  4. Step 4: Simplify right side
    189,947.43x = 31,680,396,037.23
  5. Step 5: Solve for x
    x = 31,680,396,037.23/189,947.43
  6. Step 6: Final answer
    x = 166,785.07

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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.