Home / 211,968.58-317,952.87-78,846.16

Finding the Fourth Proportional to 211,968.58, 317,952.87 and 78,846.16

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Solution

The fourth proportional to 211,968.58, 317,952.87 and 78,846.16 is: 118,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,968.58 : 317,952.87 = 78,846.16 : x
  2. Step 2: Convert to fraction form
    211,968.58/317,952.87 = 78,846.16/x
  3. Step 3: Cross multiply
    211,968.58x = 317,952.87 × 78,846.16
  4. Step 4: Simplify right side
    211,968.58x = 25,069,362,860.48
  5. Step 5: Solve for x
    x = 25,069,362,860.48/211,968.58
  6. Step 6: Final answer
    x = 118,269.24

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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.