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Finding the Fourth Proportional to 113,892.40, 170,838.60 and 75,838.60

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Solution

The fourth proportional to 113,892.40, 170,838.60 and 75,838.60 is: 113,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,892.40 : 170,838.60 = 75,838.60 : x
  2. Step 2: Convert to fraction form
    113,892.40/170,838.60 = 75,838.60/x
  3. Step 3: Cross multiply
    113,892.40x = 170,838.60 × 75,838.60
  4. Step 4: Simplify right side
    113,892.40x = 12,956,160,249.96
  5. Step 5: Solve for x
    x = 12,956,160,249.96/113,892.40
  6. Step 6: Final answer
    x = 113,757.90

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