Home / 122,878.41-169,571.79-69,163.40

Finding the Fourth Proportional to 122,878.41, 169,571.79 and 69,163.40

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Solution

The fourth proportional to 122,878.41, 169,571.79 and 69,163.40 is: 95,445.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,878.41 : 169,571.79 = 69,163.40 : x
  2. Step 2: Convert to fraction form
    122,878.41/169,571.79 = 69,163.40/x
  3. Step 3: Cross multiply
    122,878.41x = 169,571.79 × 69,163.40
  4. Step 4: Simplify right side
    122,878.41x = 11,728,160,692.63
  5. Step 5: Solve for x
    x = 11,728,160,692.63/122,878.41
  6. Step 6: Final answer
    x = 95,445.25

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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.