Home / 187,642.36-258,921.93-107,064.64

Finding the Fourth Proportional to 187,642.36, 258,921.93 and 107,064.64

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Solution

The fourth proportional to 187,642.36, 258,921.93 and 107,064.64 is: 147,735.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,642.36 : 258,921.93 = 107,064.64 : x
  2. Step 2: Convert to fraction form
    187,642.36/258,921.93 = 107,064.64/x
  3. Step 3: Cross multiply
    187,642.36x = 258,921.93 × 107,064.64
  4. Step 4: Simplify right side
    187,642.36x = 27,721,383,223.56
  5. Step 5: Solve for x
    x = 27,721,383,223.56/187,642.36
  6. Step 6: Final answer
    x = 147,735.21

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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.