Finding the Fourth Proportional to 128,618.35, 192,982.88 and 62,108.26
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Solution
The fourth proportional to 128,618.35, 192,982.88 and 62,108.26 is: 93,189.12
Step by Step Solution
- Step 1: Write the proportion equation
128,618.35 : 192,982.88 = 62,108.26 : x - Step 2: Convert to fraction form
128,618.35/192,982.88 = 62,108.26/x - Step 3: Cross multiply
128,618.35x = 192,982.88 × 62,108.26 - Step 4: Simplify right side
128,618.35x = 11,985,830,559.40 - Step 5: Solve for x
x = 11,985,830,559.40/128,618.35 - Step 6: Final answer
x = 93,189.12
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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.