Finding the Fourth Proportional to 119,915.23, 165,478.67 and 66,199.09
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Solution
The fourth proportional to 119,915.23, 165,478.67 and 66,199.09 is: 91,352.35
Step by Step Solution
- Step 1: Write the proportion equation
119,915.23 : 165,478.67 = 66,199.09 : x - Step 2: Convert to fraction form
119,915.23/165,478.67 = 66,199.09/x - Step 3: Cross multiply
119,915.23x = 165,478.67 × 66,199.09 - Step 4: Simplify right side
119,915.23x = 10,954,537,368.41 - Step 5: Solve for x
x = 10,954,537,368.41/119,915.23 - Step 6: Final answer
x = 91,352.35
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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.