Finding the Fourth Proportional to 154,991.32, 213,832.99 and 101,307.31
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Solution
The fourth proportional to 154,991.32, 213,832.99 and 101,307.31 is: 139,768.12
Step by Step Solution
- Step 1: Write the proportion equation
154,991.32 : 213,832.99 = 101,307.31 : x - Step 2: Convert to fraction form
154,991.32/213,832.99 = 101,307.31/x - Step 3: Cross multiply
154,991.32x = 213,832.99 × 101,307.31 - Step 4: Simplify right side
154,991.32x = 21,662,844,598.21 - Step 5: Solve for x
x = 21,662,844,598.21/154,991.32 - Step 6: Final answer
x = 139,768.12
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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.