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Finding the Fourth Proportional to 131,902.79, 182,034.78 and 74,522.21

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Solution

The fourth proportional to 131,902.79, 182,034.78 and 74,522.21 is: 102,845.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,902.79 : 182,034.78 = 74,522.21 : x
  2. Step 2: Convert to fraction form
    131,902.79/182,034.78 = 74,522.21/x
  3. Step 3: Cross multiply
    131,902.79x = 182,034.78 × 74,522.21
  4. Step 4: Simplify right side
    131,902.79x = 13,565,634,102.46
  5. Step 5: Solve for x
    x = 13,565,634,102.46/131,902.79
  6. Step 6: Final answer
    x = 102,845.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.