Home / 107,571.36-161,366.40-28,686

Finding the Fourth Proportional to 107,571.36, 161,366.40 and 28,686

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Solution

The fourth proportional to 107,571.36, 161,366.40 and 28,686 is: 43,031.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,571.36 : 161,366.40 = 28,686 : x
  2. Step 2: Convert to fraction form
    107,571.36/161,366.40 = 28,686/x
  3. Step 3: Cross multiply
    107,571.36x = 161,366.40 × 28,686
  4. Step 4: Simplify right side
    107,571.36x = 4,628,956,550.40
  5. Step 5: Solve for x
    x = 4,628,956,550.40/107,571.36
  6. Step 6: Final answer
    x = 43,031.50

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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.