Home / 208,370.98-312,600.27-68,118.58

Finding the Fourth Proportional to 208,370.98, 312,600.27 and 68,118.58

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Solution

The fourth proportional to 208,370.98, 312,600.27 and 68,118.58 is: 102,192.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,370.98 : 312,600.27 = 68,118.58 : x
  2. Step 2: Convert to fraction form
    208,370.98/312,600.27 = 68,118.58/x
  3. Step 3: Cross multiply
    208,370.98x = 312,600.27 × 68,118.58
  4. Step 4: Simplify right side
    208,370.98x = 21,293,886,500.02
  5. Step 5: Solve for x
    x = 21,293,886,500.02/208,370.98
  6. Step 6: Final answer
    x = 102,192.19

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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.