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Finding the Fourth Proportional to 173,399.40, 260,099.10 and 111,191.40

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Solution

The fourth proportional to 173,399.40, 260,099.10 and 111,191.40 is: 166,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,399.40 : 260,099.10 = 111,191.40 : x
  2. Step 2: Convert to fraction form
    173,399.40/260,099.10 = 111,191.40/x
  3. Step 3: Cross multiply
    173,399.40x = 260,099.10 × 111,191.40
  4. Step 4: Simplify right side
    173,399.40x = 28,920,783,067.74
  5. Step 5: Solve for x
    x = 28,920,783,067.74/173,399.40
  6. Step 6: Final answer
    x = 166,787.10

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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.