Home / 142,928.99-214,282.77-82,865.09

Finding the Fourth Proportional to 142,928.99, 214,282.77 and 82,865.09

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Solution

The fourth proportional to 142,928.99, 214,282.77 and 82,865.09 is: 124,233.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,928.99 : 214,282.77 = 82,865.09 : x
  2. Step 2: Convert to fraction form
    142,928.99/214,282.77 = 82,865.09/x
  3. Step 3: Cross multiply
    142,928.99x = 214,282.77 × 82,865.09
  4. Step 4: Simplify right side
    142,928.99x = 17,756,560,866.84
  5. Step 5: Solve for x
    x = 17,756,560,866.84/142,928.99
  6. Step 6: Final answer
    x = 124,233.44

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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.