Home / 158,426.96-218,629.08-86,811.44

Finding the Fourth Proportional to 158,426.96, 218,629.08 and 86,811.44

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Solution

The fourth proportional to 158,426.96, 218,629.08 and 86,811.44 is: 119,799.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,426.96 : 218,629.08 = 86,811.44 : x
  2. Step 2: Convert to fraction form
    158,426.96/218,629.08 = 86,811.44/x
  3. Step 3: Cross multiply
    158,426.96x = 218,629.08 × 86,811.44
  4. Step 4: Simplify right side
    158,426.96x = 18,979,505,260.68
  5. Step 5: Solve for x
    x = 18,979,505,260.68/158,426.96
  6. Step 6: Final answer
    x = 119,799.72

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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.