Finding the Fourth Proportional to 158,088.05, 218,163.20 and 86,466.53
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Solution
The fourth proportional to 158,088.05, 218,163.20 and 86,466.53 is: 119,324.74
Step by Step Solution
- Step 1: Write the proportion equation
158,088.05 : 218,163.20 = 86,466.53 : x - Step 2: Convert to fraction form
158,088.05/218,163.20 = 86,466.53/x - Step 3: Cross multiply
158,088.05x = 218,163.20 × 86,466.53 - Step 4: Simplify right side
158,088.05x = 18,863,814,990.77 - Step 5: Solve for x
x = 18,863,814,990.77/158,088.05 - Step 6: Final answer
x = 119,324.74
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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.