Home / 105,634.41-158,344.83-66,219.14

Finding the Fourth Proportional to 105,634.41, 158,344.83 and 66,219.14

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Solution

The fourth proportional to 105,634.41, 158,344.83 and 66,219.14 is: 99,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,634.41 : 158,344.83 = 66,219.14 : x
  2. Step 2: Convert to fraction form
    105,634.41/158,344.83 = 66,219.14/x
  3. Step 3: Cross multiply
    105,634.41x = 158,344.83 × 66,219.14
  4. Step 4: Simplify right side
    105,634.41x = 10,485,457,674.32
  5. Step 5: Solve for x
    x = 10,485,457,674.32/105,634.41
  6. Step 6: Final answer
    x = 99,261.76

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1.5x scale

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.