Home / 190,788-263,274.26-105,898.38

Finding the Fourth Proportional to 190,788, 263,274.26 and 105,898.38

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Solution

The fourth proportional to 190,788, 263,274.26 and 105,898.38 is: 146,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,788 : 263,274.26 = 105,898.38 : x
  2. Step 2: Convert to fraction form
    190,788/263,274.26 = 105,898.38/x
  3. Step 3: Cross multiply
    190,788x = 263,274.26 × 105,898.38
  4. Step 4: Simplify right side
    190,788x = 27,880,317,629.70
  5. Step 5: Solve for x
    x = 27,880,317,629.70/190,788
  6. Step 6: Final answer
    x = 146,132.45

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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.