Home / 208,886.23-313,380.24-66,731.37

Finding the Fourth Proportional to 208,886.23, 313,380.24 and 66,731.37

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Solution

The fourth proportional to 208,886.23, 313,380.24 and 66,731.37 is: 100,113.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,886.23 : 313,380.24 = 66,731.37 : x
  2. Step 2: Convert to fraction form
    208,886.23/313,380.24 = 66,731.37/x
  3. Step 3: Cross multiply
    208,886.23x = 313,380.24 × 66,731.37
  4. Step 4: Simplify right side
    208,886.23x = 20,912,292,746.13
  5. Step 5: Solve for x
    x = 20,912,292,746.13/208,886.23
  6. Step 6: Final answer
    x = 100,113.31

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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.