Home / 105,692.14-158,431.62-66,276.94

Finding the Fourth Proportional to 105,692.14, 158,431.62 and 66,276.94

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Solution

The fourth proportional to 105,692.14, 158,431.62 and 66,276.94 is: 99,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,692.14 : 158,431.62 = 66,276.94 : x
  2. Step 2: Convert to fraction form
    105,692.14/158,431.62 = 66,276.94/x
  3. Step 3: Cross multiply
    105,692.14x = 158,431.62 × 66,276.94
  4. Step 4: Simplify right side
    105,692.14x = 10,500,362,972.84
  5. Step 5: Solve for x
    x = 10,500,362,972.84/105,692.14
  6. Step 6: Final answer
    x = 99,348.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.