Finding the Fourth Proportional to 162,423.08, 243,634.70 and 87,578.47
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Solution
The fourth proportional to 162,423.08, 243,634.70 and 87,578.47 is: 131,367.75
Step by Step Solution
- Step 1: Write the proportion equation
162,423.08 : 243,634.70 = 87,578.47 : x - Step 2: Convert to fraction form
162,423.08/243,634.70 = 87,578.47/x - Step 3: Cross multiply
162,423.08x = 243,634.70 × 87,578.47 - Step 4: Simplify right side
162,423.08x = 21,337,154,264.91 - Step 5: Solve for x
x = 21,337,154,264.91/162,423.08 - Step 6: Final answer
x = 131,367.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.