Finding the Fourth Proportional to 158,463.50, 218,681.37 and 86,841.99
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Solution
The fourth proportional to 158,463.50, 218,681.37 and 86,841.99 is: 119,842.90
Step by Step Solution
- Step 1: Write the proportion equation
158,463.50 : 218,681.37 = 86,841.99 : x - Step 2: Convert to fraction form
158,463.50/218,681.37 = 86,841.99/x - Step 3: Cross multiply
158,463.50x = 218,681.37 × 86,841.99 - Step 4: Simplify right side
158,463.50x = 18,990,725,346.73 - Step 5: Solve for x
x = 18,990,725,346.73/158,463.50 - Step 6: Final answer
x = 119,842.90
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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.