Home / 190,864.02-263,400.42-105,981

Finding the Fourth Proportional to 190,864.02, 263,400.42 and 105,981

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Solution

The fourth proportional to 190,864.02, 263,400.42 and 105,981 is: 146,258.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,864.02 : 263,400.42 = 105,981 : x
  2. Step 2: Convert to fraction form
    190,864.02/263,400.42 = 105,981/x
  3. Step 3: Cross multiply
    190,864.02x = 263,400.42 × 105,981
  4. Step 4: Simplify right side
    190,864.02x = 27,915,439,912.02
  5. Step 5: Solve for x
    x = 27,915,439,912.02/190,864.02
  6. Step 6: Final answer
    x = 146,258.26

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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.