Home / 189,118.33-260,964.61-112,622.21

Finding the Fourth Proportional to 189,118.33, 260,964.61 and 112,622.21

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Solution

The fourth proportional to 189,118.33, 260,964.61 and 112,622.21 is: 155,407.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,118.33 : 260,964.61 = 112,622.21 : x
  2. Step 2: Convert to fraction form
    189,118.33/260,964.61 = 112,622.21/x
  3. Step 3: Cross multiply
    189,118.33x = 260,964.61 × 112,622.21
  4. Step 4: Simplify right side
    189,118.33x = 29,390,410,546.88
  5. Step 5: Solve for x
    x = 29,390,410,546.88/189,118.33
  6. Step 6: Final answer
    x = 155,407.52

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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.