Finding the Fourth Proportional to 158,631.84, 218,908.08 and 102,043.08
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Solution
The fourth proportional to 158,631.84, 218,908.08 and 102,043.08 is: 140,816.97
Step by Step Solution
- Step 1: Write the proportion equation
158,631.84 : 218,908.08 = 102,043.08 : x - Step 2: Convert to fraction form
158,631.84/218,908.08 = 102,043.08/x - Step 3: Cross multiply
158,631.84x = 218,908.08 × 102,043.08 - Step 4: Simplify right side
158,631.84x = 22,338,054,720.09 - Step 5: Solve for x
x = 22,338,054,720.09/158,631.84 - Step 6: Final answer
x = 140,816.97
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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.