Finding the Fourth Proportional to 131,991.84, 182,152.33 and 74,639.75
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Solution
The fourth proportional to 131,991.84, 182,152.33 and 74,639.75 is: 103,004.88
Step by Step Solution
- Step 1: Write the proportion equation
131,991.84 : 182,152.33 = 74,639.75 : x - Step 2: Convert to fraction form
131,991.84/182,152.33 = 74,639.75/x - Step 3: Cross multiply
131,991.84x = 182,152.33 × 74,639.75 - Step 4: Simplify right side
131,991.84x = 13,595,803,462.36 - Step 5: Solve for x
x = 13,595,803,462.36/131,991.84 - Step 6: Final answer
x = 103,004.88
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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.