Finding the Fourth Proportional to 149,652.36, 206,491.68 and 85,992.84
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Solution
The fourth proportional to 149,652.36, 206,491.68 and 85,992.84 is: 118,653.70
Step by Step Solution
- Step 1: Write the proportion equation
149,652.36 : 206,491.68 = 85,992.84 : x - Step 2: Convert to fraction form
149,652.36/206,491.68 = 85,992.84/x - Step 3: Cross multiply
149,652.36x = 206,491.68 × 85,992.84 - Step 4: Simplify right side
149,652.36x = 17,756,805,999.57 - Step 5: Solve for x
x = 17,756,805,999.57/149,652.36 - Step 6: Final answer
x = 118,653.70
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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.