Home / 122,435.85-168,961.32-68,720.93

Finding the Fourth Proportional to 122,435.85, 168,961.32 and 68,720.93

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Solution

The fourth proportional to 122,435.85, 168,961.32 and 68,720.93 is: 94,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,435.85 : 168,961.32 = 68,720.93 : x
  2. Step 2: Convert to fraction form
    122,435.85/168,961.32 = 68,720.93/x
  3. Step 3: Cross multiply
    122,435.85x = 168,961.32 × 68,720.93
  4. Step 4: Simplify right side
    122,435.85x = 11,611,179,115.15
  5. Step 5: Solve for x
    x = 11,611,179,115.15/122,435.85
  6. Step 6: Final answer
    x = 94,834.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.