Home / 154,884.25-213,764.37-86,928.69

Finding the Fourth Proportional to 154,884.25, 213,764.37 and 86,928.69

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Solution

The fourth proportional to 154,884.25, 213,764.37 and 86,928.69 is: 119,975.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,884.25 : 213,764.37 = 86,928.69 : x
  2. Step 2: Convert to fraction form
    154,884.25/213,764.37 = 86,928.69/x
  3. Step 3: Cross multiply
    154,884.25x = 213,764.37 × 86,928.69
  4. Step 4: Simplify right side
    154,884.25x = 18,582,257,128.41
  5. Step 5: Solve for x
    x = 18,582,257,128.41/154,884.25
  6. Step 6: Final answer
    x = 119,975.12

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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.