Home / 189,476.07-261,467.79-107,796.64

Finding the Fourth Proportional to 189,476.07, 261,467.79 and 107,796.64

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Solution

The fourth proportional to 189,476.07, 261,467.79 and 107,796.64 is: 148,754.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,476.07 : 261,467.79 = 107,796.64 : x
  2. Step 2: Convert to fraction form
    189,476.07/261,467.79 = 107,796.64/x
  3. Step 3: Cross multiply
    189,476.07x = 261,467.79 × 107,796.64
  4. Step 4: Simplify right side
    189,476.07x = 28,185,348,576.56
  5. Step 5: Solve for x
    x = 28,185,348,576.56/189,476.07
  6. Step 6: Final answer
    x = 148,754.13

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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.