Finding the Fourth Proportional to 119,702.68, 165,190.84 and 65,989.62
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Solution
The fourth proportional to 119,702.68, 165,190.84 and 65,989.62 is: 91,066.31
Step by Step Solution
- Step 1: Write the proportion equation
119,702.68 : 165,190.84 = 65,989.62 : x - Step 2: Convert to fraction form
119,702.68/165,190.84 = 65,989.62/x - Step 3: Cross multiply
119,702.68x = 165,190.84 × 65,989.62 - Step 4: Simplify right side
119,702.68x = 10,900,880,594.11 - Step 5: Solve for x
x = 10,900,880,594.11/119,702.68 - Step 6: Final answer
x = 91,066.31
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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.