Home / 106,619.36-147,757.10-105,116

Finding the Fourth Proportional to 106,619.36, 147,757.10 and 105,116

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Solution

The fourth proportional to 106,619.36, 147,757.10 and 105,116 is: 145,673.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,619.36 : 147,757.10 = 105,116 : x
  2. Step 2: Convert to fraction form
    106,619.36/147,757.10 = 105,116/x
  3. Step 3: Cross multiply
    106,619.36x = 147,757.10 × 105,116
  4. Step 4: Simplify right side
    106,619.36x = 15,531,635,323.60
  5. Step 5: Solve for x
    x = 15,531,635,323.60/106,619.36
  6. Step 6: Final answer
    x = 145,673.69

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.