Home / 208,120.26-312,189.11-65,962.43

Finding the Fourth Proportional to 208,120.26, 312,189.11 and 65,962.43

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Solution

The fourth proportional to 208,120.26, 312,189.11 and 65,962.43 is: 98,946.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,120.26 : 312,189.11 = 65,962.43 : x
  2. Step 2: Convert to fraction form
    208,120.26/312,189.11 = 65,962.43/x
  3. Step 3: Cross multiply
    208,120.26x = 312,189.11 × 65,962.43
  4. Step 4: Simplify right side
    208,120.26x = 20,592,752,315.14
  5. Step 5: Solve for x
    x = 20,592,752,315.14/208,120.26
  6. Step 6: Final answer
    x = 98,946.41

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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.