Home / 114,679.20-158,229.60-66,905.28

Finding the Fourth Proportional to 114,679.20, 158,229.60 and 66,905.28

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Solution

The fourth proportional to 114,679.20, 158,229.60 and 66,905.28 is: 92,313.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,679.20 : 158,229.60 = 66,905.28 : x
  2. Step 2: Convert to fraction form
    114,679.20/158,229.60 = 66,905.28/x
  3. Step 3: Cross multiply
    114,679.20x = 158,229.60 × 66,905.28
  4. Step 4: Simplify right side
    114,679.20x = 10,586,395,692.29
  5. Step 5: Solve for x
    x = 10,586,395,692.29/114,679.20
  6. Step 6: Final answer
    x = 92,313.13

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1.5x scale

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.