Finding the Fourth Proportional to 175,408.70, 242,174.68 and 121,674.92
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Solution
The fourth proportional to 175,408.70, 242,174.68 and 121,674.92 is: 167,988.16
Step by Step Solution
- Step 1: Write the proportion equation
175,408.70 : 242,174.68 = 121,674.92 : x - Step 2: Convert to fraction form
175,408.70/242,174.68 = 121,674.92/x - Step 3: Cross multiply
175,408.70x = 242,174.68 × 121,674.92 - Step 4: Simplify right side
175,408.70x = 29,466,583,299.96 - Step 5: Solve for x
x = 29,466,583,299.96/175,408.70 - Step 6: Final answer
x = 167,988.16
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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.