Home / 192,736.78-265,972.55-105,521.70

Finding the Fourth Proportional to 192,736.78, 265,972.55 and 105,521.70

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Solution

The fourth proportional to 192,736.78, 265,972.55 and 105,521.70 is: 145,617.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,736.78 : 265,972.55 = 105,521.70 : x
  2. Step 2: Convert to fraction form
    192,736.78/265,972.55 = 105,521.70/x
  3. Step 3: Cross multiply
    192,736.78x = 265,972.55 × 105,521.70
  4. Step 4: Simplify right side
    192,736.78x = 28,065,876,099.12
  5. Step 5: Solve for x
    x = 28,065,876,099.12/192,736.78
  6. Step 6: Final answer
    x = 145,617.64

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Why These Related Problems?

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