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Finding the Fourth Proportional to 188,692.75, 260,396 and 103,807.99

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Solution

The fourth proportional to 188,692.75, 260,396 and 103,807.99 is: 143,255.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,692.75 : 260,396 = 103,807.99 : x
  2. Step 2: Convert to fraction form
    188,692.75/260,396 = 103,807.99/x
  3. Step 3: Cross multiply
    188,692.75x = 260,396 × 103,807.99
  4. Step 4: Simplify right side
    188,692.75x = 27,031,185,364.04
  5. Step 5: Solve for x
    x = 27,031,185,364.04/188,692.75
  6. Step 6: Final answer
    x = 143,255.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.