Home / 105,664.96-158,489.36-30,785.68

Finding the Fourth Proportional to 105,664.96, 158,489.36 and 30,785.68

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Solution

The fourth proportional to 105,664.96, 158,489.36 and 30,785.68 is: 46,176.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,664.96 : 158,489.36 = 30,785.68 : x
  2. Step 2: Convert to fraction form
    105,664.96/158,489.36 = 30,785.68/x
  3. Step 3: Cross multiply
    105,664.96x = 158,489.36 × 30,785.68
  4. Step 4: Simplify right side
    105,664.96x = 4,879,202,720.36
  5. Step 5: Solve for x
    x = 4,879,202,720.36/105,664.96
  6. Step 6: Final answer
    x = 46,176.17

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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.