Finding the Fourth Proportional to 145,135.56, 217,702.26 and 78,996.12
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Solution
The fourth proportional to 145,135.56, 217,702.26 and 78,996.12 is: 118,493.59
Step by Step Solution
- Step 1: Write the proportion equation
145,135.56 : 217,702.26 = 78,996.12 : x - Step 2: Convert to fraction form
145,135.56/217,702.26 = 78,996.12/x - Step 3: Cross multiply
145,135.56x = 217,702.26 × 78,996.12 - Step 4: Simplify right side
145,135.56x = 17,197,633,855.23 - Step 5: Solve for x
x = 17,197,633,855.23/145,135.56 - Step 6: Final answer
x = 118,493.59
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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.