Home / 121,503.44-167,692.20-71,201.36

Finding the Fourth Proportional to 121,503.44, 167,692.20 and 71,201.36

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Solution

The fourth proportional to 121,503.44, 167,692.20 and 71,201.36 is: 98,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,503.44 : 167,692.20 = 71,201.36 : x
  2. Step 2: Convert to fraction form
    121,503.44/167,692.20 = 71,201.36/x
  3. Step 3: Cross multiply
    121,503.44x = 167,692.20 × 71,201.36
  4. Step 4: Simplify right side
    121,503.44x = 11,939,912,701.39
  5. Step 5: Solve for x
    x = 11,939,912,701.39/121,503.44
  6. Step 6: Final answer
    x = 98,268.10

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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.