Finding the Fourth Proportional to 157,209.84, 217,016.64 and 93,553.68
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Solution
The fourth proportional to 157,209.84, 217,016.64 and 93,553.68 is: 129,143.99
Step by Step Solution
- Step 1: Write the proportion equation
157,209.84 : 217,016.64 = 93,553.68 : x - Step 2: Convert to fraction form
157,209.84/217,016.64 = 93,553.68/x - Step 3: Cross multiply
157,209.84x = 217,016.64 × 93,553.68 - Step 4: Simplify right side
157,209.84x = 20,302,705,293.24 - Step 5: Solve for x
x = 20,302,705,293.24/157,209.84 - Step 6: Final answer
x = 129,143.99
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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.