Home / 148,759.76-205,289.80-81,692.24

Finding the Fourth Proportional to 148,759.76, 205,289.80 and 81,692.24

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Solution

The fourth proportional to 148,759.76, 205,289.80 and 81,692.24 is: 112,736.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,759.76 : 205,289.80 = 81,692.24 : x
  2. Step 2: Convert to fraction form
    148,759.76/205,289.80 = 81,692.24/x
  3. Step 3: Cross multiply
    148,759.76x = 205,289.80 × 81,692.24
  4. Step 4: Simplify right side
    148,759.76x = 16,770,583,611.15
  5. Step 5: Solve for x
    x = 16,770,583,611.15/148,759.76
  6. Step 6: Final answer
    x = 112,736.02

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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.