Home / 208,348.42-312,544.59-68,106.82

Finding the Fourth Proportional to 208,348.42, 312,544.59 and 68,106.82

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Solution

The fourth proportional to 208,348.42, 312,544.59 and 68,106.82 is: 102,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,348.42 : 312,544.59 = 68,106.82 : x
  2. Step 2: Convert to fraction form
    208,348.42/312,544.59 = 68,106.82/x
  3. Step 3: Cross multiply
    208,348.42x = 312,544.59 × 68,106.82
  4. Step 4: Simplify right side
    208,348.42x = 21,286,418,133.10
  5. Step 5: Solve for x
    x = 21,286,418,133.10/208,348.42
  6. Step 6: Final answer
    x = 102,167.41

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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.