Home / 211,382.16-317,122.04-71,137.36

Finding the Fourth Proportional to 211,382.16, 317,122.04 and 71,137.36

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Solution

The fourth proportional to 211,382.16, 317,122.04 and 71,137.36 is: 106,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,382.16 : 317,122.04 = 71,137.36 : x
  2. Step 2: Convert to fraction form
    211,382.16/317,122.04 = 71,137.36/x
  3. Step 3: Cross multiply
    211,382.16x = 317,122.04 × 71,137.36
  4. Step 4: Simplify right side
    211,382.16x = 22,559,224,723.41
  5. Step 5: Solve for x
    x = 22,559,224,723.41/211,382.16
  6. Step 6: Final answer
    x = 106,722.46

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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.