Home / 231,187.37-319,040.78-135,695.66

Finding the Fourth Proportional to 231,187.37, 319,040.78 and 135,695.66

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Solution

The fourth proportional to 231,187.37, 319,040.78 and 135,695.66 is: 187,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,187.37 : 319,040.78 = 135,695.66 : x
  2. Step 2: Convert to fraction form
    231,187.37/319,040.78 = 135,695.66/x
  3. Step 3: Cross multiply
    231,187.37x = 319,040.78 × 135,695.66
  4. Step 4: Simplify right side
    231,187.37x = 43,292,446,935.33
  5. Step 5: Solve for x
    x = 43,292,446,935.33/231,187.37
  6. Step 6: Final answer
    x = 187,261.30

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1.5x scale

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.