Home / 143,968.44-198,569.34-105,715.98

Finding the Fourth Proportional to 143,968.44, 198,569.34 and 105,715.98

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Solution

The fourth proportional to 143,968.44, 198,569.34 and 105,715.98 is: 145,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,968.44 : 198,569.34 = 105,715.98 : x
  2. Step 2: Convert to fraction form
    143,968.44/198,569.34 = 105,715.98/x
  3. Step 3: Cross multiply
    143,968.44x = 198,569.34 × 105,715.98
  4. Step 4: Simplify right side
    143,968.44x = 20,991,952,376.05
  5. Step 5: Solve for x
    x = 20,991,952,376.05/143,968.44
  6. Step 6: Final answer
    x = 145,809.40

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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.