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Finding the Fourth Proportional to 151,076.44, 208,125.30 and 105,669.40

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Solution

The fourth proportional to 151,076.44, 208,125.30 and 105,669.40 is: 145,571.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,076.44 : 208,125.30 = 105,669.40 : x
  2. Step 2: Convert to fraction form
    151,076.44/208,125.30 = 105,669.40/x
  3. Step 3: Cross multiply
    151,076.44x = 208,125.30 × 105,669.40
  4. Step 4: Simplify right side
    151,076.44x = 21,992,475,575.82
  5. Step 5: Solve for x
    x = 21,992,475,575.82/151,076.44
  6. Step 6: Final answer
    x = 145,571.84

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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.