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Finding the Fourth Proportional to 122,000.95, 168,361.24 and 68,285.95

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Solution

The fourth proportional to 122,000.95, 168,361.24 and 68,285.95 is: 94,234.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,000.95 : 168,361.24 = 68,285.95 : x
  2. Step 2: Convert to fraction form
    122,000.95/168,361.24 = 68,285.95/x
  3. Step 3: Cross multiply
    122,000.95x = 168,361.24 × 68,285.95
  4. Step 4: Simplify right side
    122,000.95x = 11,496,707,216.58
  5. Step 5: Solve for x
    x = 11,496,707,216.58/122,000.95
  6. Step 6: Final answer
    x = 94,234.57

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1.5x scale

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.