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Finding the Fourth Proportional to 101,076.70, 151,323.45 and 90,579.10

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Solution

The fourth proportional to 101,076.70, 151,323.45 and 90,579.10 is: 135,607.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,076.70 : 151,323.45 = 90,579.10 : x
  2. Step 2: Convert to fraction form
    101,076.70/151,323.45 = 90,579.10/x
  3. Step 3: Cross multiply
    101,076.70x = 151,323.45 × 90,579.10
  4. Step 4: Simplify right side
    101,076.70x = 13,706,741,909.90
  5. Step 5: Solve for x
    x = 13,706,741,909.90/101,076.70
  6. Step 6: Final answer
    x = 135,607.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.