Home / 151,258.09-208,728.24-83,261.79

Finding the Fourth Proportional to 151,258.09, 208,728.24 and 83,261.79

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Solution

The fourth proportional to 151,258.09, 208,728.24 and 83,261.79 is: 114,896.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,258.09 : 208,728.24 = 83,261.79 : x
  2. Step 2: Convert to fraction form
    151,258.09/208,728.24 = 83,261.79/x
  3. Step 3: Cross multiply
    151,258.09x = 208,728.24 × 83,261.79
  4. Step 4: Simplify right side
    151,258.09x = 17,379,086,885.95
  5. Step 5: Solve for x
    x = 17,379,086,885.95/151,258.09
  6. Step 6: Final answer
    x = 114,896.91

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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.