Home / 105,921.42-158,969.61-43,635.66

Finding the Fourth Proportional to 105,921.42, 158,969.61 and 43,635.66

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Solution

The fourth proportional to 105,921.42, 158,969.61 and 43,635.66 is: 65,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,921.42 : 158,969.61 = 43,635.66 : x
  2. Step 2: Convert to fraction form
    105,921.42/158,969.61 = 43,635.66/x
  3. Step 3: Cross multiply
    105,921.42x = 158,969.61 × 43,635.66
  4. Step 4: Simplify right side
    105,921.42x = 6,936,743,852.29
  5. Step 5: Solve for x
    x = 6,936,743,852.29/105,921.42
  6. Step 6: Final answer
    x = 65,489.53

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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.