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Finding the Fourth Proportional to 143,315.88, 215,004.41 and 48,542.75

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Solution

The fourth proportional to 143,315.88, 215,004.41 and 48,542.75 is: 72,824.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,315.88 : 215,004.41 = 48,542.75 : x
  2. Step 2: Convert to fraction form
    143,315.88/215,004.41 = 48,542.75/x
  3. Step 3: Cross multiply
    143,315.88x = 215,004.41 × 48,542.75
  4. Step 4: Simplify right side
    143,315.88x = 10,436,905,323.53
  5. Step 5: Solve for x
    x = 10,436,905,323.53/143,315.88
  6. Step 6: Final answer
    x = 72,824.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.