Home / 211,455.23-317,149.88-61,679.84

Finding the Fourth Proportional to 211,455.23, 317,149.88 and 61,679.84

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Solution

The fourth proportional to 211,455.23, 317,149.88 and 61,679.84 is: 92,510.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,455.23 : 317,149.88 = 61,679.84 : x
  2. Step 2: Convert to fraction form
    211,455.23/317,149.88 = 61,679.84/x
  3. Step 3: Cross multiply
    211,455.23x = 317,149.88 × 61,679.84
  4. Step 4: Simplify right side
    211,455.23x = 19,561,751,960.27
  5. Step 5: Solve for x
    x = 19,561,751,960.27/211,455.23
  6. Step 6: Final answer
    x = 92,510.14

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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.