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Finding the Fourth Proportional to 143,993.30, 215,814.84 and 101,885.52

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Solution

The fourth proportional to 143,993.30, 215,814.84 and 101,885.52 is: 152,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,993.30 : 215,814.84 = 101,885.52 : x
  2. Step 2: Convert to fraction form
    143,993.30/215,814.84 = 101,885.52/x
  3. Step 3: Cross multiply
    143,993.30x = 215,814.84 × 101,885.52
  4. Step 4: Simplify right side
    143,993.30x = 21,988,407,197.12
  5. Step 5: Solve for x
    x = 21,988,407,197.12/143,993.30
  6. Step 6: Final answer
    x = 152,704.38

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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.