Finding the Fourth Proportional to 106,162.84, 158,393.75 and 84,715.66
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Solution
The fourth proportional to 106,162.84, 158,393.75 and 84,715.66 is: 126,394.80
Step by Step Solution
- Step 1: Write the proportion equation
106,162.84 : 158,393.75 = 84,715.66 : x - Step 2: Convert to fraction form
106,162.84/158,393.75 = 84,715.66/x - Step 3: Cross multiply
106,162.84x = 158,393.75 × 84,715.66 - Step 4: Simplify right side
106,162.84x = 13,418,431,071.13 - Step 5: Solve for x
x = 13,418,431,071.13/106,162.84 - Step 6: Final answer
x = 126,394.80
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.