Finding the Fourth Proportional to 131,815.36, 197,722.99 and 52,929.56
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Solution
The fourth proportional to 131,815.36, 197,722.99 and 52,929.56 is: 79,394.32
Step by Step Solution
- Step 1: Write the proportion equation
131,815.36 : 197,722.99 = 52,929.56 : x - Step 2: Convert to fraction form
131,815.36/197,722.99 = 52,929.56/x - Step 3: Cross multiply
131,815.36x = 197,722.99 × 52,929.56 - Step 4: Simplify right side
131,815.36x = 10,465,391,423.05 - Step 5: Solve for x
x = 10,465,391,423.05/131,815.36 - Step 6: Final answer
x = 79,394.32
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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.