Home / 142,692.75-196,913.58-79,029.18

Finding the Fourth Proportional to 142,692.75, 196,913.58 and 79,029.18

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Solution

The fourth proportional to 142,692.75, 196,913.58 and 79,029.18 is: 109,058.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,692.75 : 196,913.58 = 79,029.18 : x
  2. Step 2: Convert to fraction form
    142,692.75/196,913.58 = 79,029.18/x
  3. Step 3: Cross multiply
    142,692.75x = 196,913.58 × 79,029.18
  4. Step 4: Simplify right side
    142,692.75x = 15,561,918,906.44
  5. Step 5: Solve for x
    x = 15,561,918,906.44/142,692.75
  6. Step 6: Final answer
    x = 109,058.93

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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.