Home / 211,870.24-317,846.32-80,532

Finding the Fourth Proportional to 211,870.24, 317,846.32 and 80,532

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Solution

The fourth proportional to 211,870.24, 317,846.32 and 80,532 is: 120,813.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,870.24 : 317,846.32 = 80,532 : x
  2. Step 2: Convert to fraction form
    211,870.24/317,846.32 = 80,532/x
  3. Step 3: Cross multiply
    211,870.24x = 317,846.32 × 80,532
  4. Step 4: Simplify right side
    211,870.24x = 25,596,799,842.24
  5. Step 5: Solve for x
    x = 25,596,799,842.24/211,870.24
  6. Step 6: Final answer
    x = 120,813.57

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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.