Home / 105,635.41-158,346.33-66,220.14

Finding the Fourth Proportional to 105,635.41, 158,346.33 and 66,220.14

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Solution

The fourth proportional to 105,635.41, 158,346.33 and 66,220.14 is: 99,263.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,635.41 : 158,346.33 = 66,220.14 : x
  2. Step 2: Convert to fraction form
    105,635.41/158,346.33 = 66,220.14/x
  3. Step 3: Cross multiply
    105,635.41x = 158,346.33 × 66,220.14
  4. Step 4: Simplify right side
    105,635.41x = 10,485,716,141.09
  5. Step 5: Solve for x
    x = 10,485,716,141.09/105,635.41
  6. Step 6: Final answer
    x = 99,263.27

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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.