Home / 198,287.37-273,637.31-107,643.51

Finding the Fourth Proportional to 198,287.37, 273,637.31 and 107,643.51

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Solution

The fourth proportional to 198,287.37, 273,637.31 and 107,643.51 is: 148,548.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,287.37 : 273,637.31 = 107,643.51 : x
  2. Step 2: Convert to fraction form
    198,287.37/273,637.31 = 107,643.51/x
  3. Step 3: Cross multiply
    198,287.37x = 273,637.31 × 107,643.51
  4. Step 4: Simplify right side
    198,287.37x = 29,455,279,977.14
  5. Step 5: Solve for x
    x = 29,455,279,977.14/198,287.37
  6. Step 6: Final answer
    x = 148,548.44

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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.