Home / 122,887,105.45-169,586,705.43-67,136,136.84

Finding the Fourth Proportional to 122,887,105.45, 169,586,705.43 and 67,136,136.84

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Solution

The fourth proportional to 122,887,105.45, 169,586,705.43 and 67,136,136.84 is: 92,649,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,887,105.45 : 169,586,705.43 = 67,136,136.84 : x
  2. Step 2: Convert to fraction form
    122,887,105.45/169,586,705.43 = 67,136,136.84/x
  3. Step 3: Cross multiply
    122,887,105.45x = 169,586,705.43 × 67,136,136.84
  4. Step 4: Simplify right side
    122,887,105.45x = 11,385,396,261,993,252
  5. Step 5: Solve for x
    x = 11,385,396,261,993,252/122,887,105.45
  6. Step 6: Final answer
    x = 92,649,234.60

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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.