Home / 211,227.75-316,841.63-70,986.38

Finding the Fourth Proportional to 211,227.75, 316,841.63 and 70,986.38

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Solution

The fourth proportional to 211,227.75, 316,841.63 and 70,986.38 is: 106,479.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,227.75 : 316,841.63 = 70,986.38 : x
  2. Step 2: Convert to fraction form
    211,227.75/316,841.63 = 70,986.38/x
  3. Step 3: Cross multiply
    211,227.75x = 316,841.63 × 70,986.38
  4. Step 4: Simplify right side
    211,227.75x = 22,491,438,407.86
  5. Step 5: Solve for x
    x = 22,491,438,407.86/211,227.75
  6. Step 6: Final answer
    x = 106,479.56

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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.