Finding the Fourth Proportional to 133,298.62, 183,951.68 and 72,869.31
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Solution
The fourth proportional to 133,298.62, 183,951.68 and 72,869.31 is: 100,559.42
Step by Step Solution
- Step 1: Write the proportion equation
133,298.62 : 183,951.68 = 72,869.31 : x - Step 2: Convert to fraction form
133,298.62/183,951.68 = 72,869.31/x - Step 3: Cross multiply
133,298.62x = 183,951.68 × 72,869.31 - Step 4: Simplify right side
133,298.62x = 13,404,431,630.59 - Step 5: Solve for x
x = 13,404,431,630.59/133,298.62 - Step 6: Final answer
x = 100,559.42
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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.