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Finding the Fourth Proportional to 143,910.99, 215,867.01 and 44,070.78

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Solution

The fourth proportional to 143,910.99, 215,867.01 and 44,070.78 is: 66,106.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,910.99 : 215,867.01 = 44,070.78 : x
  2. Step 2: Convert to fraction form
    143,910.99/215,867.01 = 44,070.78/x
  3. Step 3: Cross multiply
    143,910.99x = 215,867.01 × 44,070.78
  4. Step 4: Simplify right side
    143,910.99x = 9,513,427,506.97
  5. Step 5: Solve for x
    x = 9,513,427,506.97/143,910.99
  6. Step 6: Final answer
    x = 66,106.33

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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.