Finding the Fourth Proportional to 149,658.60, 206,533.68 and 85,126.19
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Solution
The fourth proportional to 149,658.60, 206,533.68 and 85,126.19 is: 117,476.88
Step by Step Solution
- Step 1: Write the proportion equation
149,658.60 : 206,533.68 = 85,126.19 : x - Step 2: Convert to fraction form
149,658.60/206,533.68 = 85,126.19/x - Step 3: Cross multiply
149,658.60x = 206,533.68 × 85,126.19 - Step 4: Simplify right side
149,658.60x = 17,581,425,285.08 - Step 5: Solve for x
x = 17,581,425,285.08/149,658.60 - Step 6: Final answer
x = 117,476.88
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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.