Finding the Fourth Proportional to 122,361.52, 183,246.90 and 69,611.08
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Solution
The fourth proportional to 122,361.52, 183,246.90 and 69,611.08 is: 104,248.58
Step by Step Solution
- Step 1: Write the proportion equation
122,361.52 : 183,246.90 = 69,611.08 : x - Step 2: Convert to fraction form
122,361.52/183,246.90 = 69,611.08/x - Step 3: Cross multiply
122,361.52x = 183,246.90 × 69,611.08 - Step 4: Simplify right side
122,361.52x = 12,756,014,615.65 - Step 5: Solve for x
x = 12,756,014,615.65/122,361.52 - Step 6: Final answer
x = 104,248.58
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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.