Home / 189,785.40-261,907.44-104,900.64

Finding the Fourth Proportional to 189,785.40, 261,907.44 and 104,900.64

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Solution

The fourth proportional to 189,785.40, 261,907.44 and 104,900.64 is: 144,764.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,785.40 : 261,907.44 = 104,900.64 : x
  2. Step 2: Convert to fraction form
    189,785.40/261,907.44 = 104,900.64/x
  3. Step 3: Cross multiply
    189,785.40x = 261,907.44 × 104,900.64
  4. Step 4: Simplify right side
    189,785.40x = 27,474,258,076.76
  5. Step 5: Solve for x
    x = 27,474,258,076.76/189,785.40
  6. Step 6: Final answer
    x = 144,764.87

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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.