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Finding the Fourth Proportional to 101,956.72, 152,900.40 and 38,761.60

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Solution

The fourth proportional to 101,956.72, 152,900.40 and 38,761.60 is: 58,129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,956.72 : 152,900.40 = 38,761.60 : x
  2. Step 2: Convert to fraction form
    101,956.72/152,900.40 = 38,761.60/x
  3. Step 3: Cross multiply
    101,956.72x = 152,900.40 × 38,761.60
  4. Step 4: Simplify right side
    101,956.72x = 5,926,664,144.64
  5. Step 5: Solve for x
    x = 5,926,664,144.64/101,956.72
  6. Step 6: Final answer
    x = 58,129.22

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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.