Home / 105,633.28-158,343.30-66,218.07

Finding the Fourth Proportional to 105,633.28, 158,343.30 and 66,218.07

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Solution

The fourth proportional to 105,633.28, 158,343.30 and 66,218.07 is: 99,260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,633.28 : 158,343.30 = 66,218.07 : x
  2. Step 2: Convert to fraction form
    105,633.28/158,343.30 = 66,218.07/x
  3. Step 3: Cross multiply
    105,633.28x = 158,343.30 × 66,218.07
  4. Step 4: Simplify right side
    105,633.28x = 10,485,188,119.29
  5. Step 5: Solve for x
    x = 10,485,188,119.29/105,633.28
  6. Step 6: Final answer
    x = 99,260.27

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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.