Home / 105,996.26-146,295.52-70,187.78

Finding the Fourth Proportional to 105,996.26, 146,295.52 and 70,187.78

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Solution

The fourth proportional to 105,996.26, 146,295.52 and 70,187.78 is: 96,872.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,996.26 : 146,295.52 = 70,187.78 : x
  2. Step 2: Convert to fraction form
    105,996.26/146,295.52 = 70,187.78/x
  3. Step 3: Cross multiply
    105,996.26x = 146,295.52 × 70,187.78
  4. Step 4: Simplify right side
    105,996.26x = 10,268,157,772.75
  5. Step 5: Solve for x
    x = 10,268,157,772.75/105,996.26
  6. Step 6: Final answer
    x = 96,872.83

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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.