Finding the Fourth Proportional to 154,871.18, 213,643.44 and 101,187.62
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Solution
The fourth proportional to 154,871.18, 213,643.44 and 101,187.62 is: 139,587.44
Step by Step Solution
- Step 1: Write the proportion equation
154,871.18 : 213,643.44 = 101,187.62 : x - Step 2: Convert to fraction form
154,871.18/213,643.44 = 101,187.62/x - Step 3: Cross multiply
154,871.18x = 213,643.44 × 101,187.62 - Step 4: Simplify right side
154,871.18x = 21,618,071,222.21 - Step 5: Solve for x
x = 21,618,071,222.21/154,871.18 - Step 6: Final answer
x = 139,587.44
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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.