Home / 143,837.81-198,423.22-109,787.18

Finding the Fourth Proportional to 143,837.81, 198,423.22 and 109,787.18

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Solution

The fourth proportional to 143,837.81, 198,423.22 and 109,787.18 is: 151,450.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,837.81 : 198,423.22 = 109,787.18 : x
  2. Step 2: Convert to fraction form
    143,837.81/198,423.22 = 109,787.18/x
  3. Step 3: Cross multiply
    143,837.81x = 198,423.22 × 109,787.18
  4. Step 4: Simplify right side
    143,837.81x = 21,784,325,825.72
  5. Step 5: Solve for x
    x = 21,784,325,825.72/143,837.81
  6. Step 6: Final answer
    x = 151,450.62

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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.