Finding the Fourth Proportional to 158,344.98, 218,504.70 and 86,713.44
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Solution
The fourth proportional to 158,344.98, 218,504.70 and 86,713.44 is: 119,658.32
Step by Step Solution
- Step 1: Write the proportion equation
158,344.98 : 218,504.70 = 86,713.44 : x - Step 2: Convert to fraction form
158,344.98/218,504.70 = 86,713.44/x - Step 3: Cross multiply
158,344.98x = 218,504.70 × 86,713.44 - Step 4: Simplify right side
158,344.98x = 18,947,294,193.17 - Step 5: Solve for x
x = 18,947,294,193.17/158,344.98 - Step 6: Final answer
x = 119,658.32
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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.