Home / 143,277.12-214,841.40-75,845.70

Finding the Fourth Proportional to 143,277.12, 214,841.40 and 75,845.70

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Solution

The fourth proportional to 143,277.12, 214,841.40 and 75,845.70 is: 113,729.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,277.12 : 214,841.40 = 75,845.70 : x
  2. Step 2: Convert to fraction form
    143,277.12/214,841.40 = 75,845.70/x
  3. Step 3: Cross multiply
    143,277.12x = 214,841.40 × 75,845.70
  4. Step 4: Simplify right side
    143,277.12x = 16,294,796,371.98
  5. Step 5: Solve for x
    x = 16,294,796,371.98/143,277.12
  6. Step 6: Final answer
    x = 113,729.23

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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.