Finding the Fourth Proportional to 149,683.68, 206,563.20 and 82,615.68
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Solution
The fourth proportional to 149,683.68, 206,563.20 and 82,615.68 is: 114,009.48
Step by Step Solution
- Step 1: Write the proportion equation
149,683.68 : 206,563.20 = 82,615.68 : x - Step 2: Convert to fraction form
149,683.68/206,563.20 = 82,615.68/x - Step 3: Cross multiply
149,683.68x = 206,563.20 × 82,615.68 - Step 4: Simplify right side
149,683.68x = 17,065,359,230.98 - Step 5: Solve for x
x = 17,065,359,230.98/149,683.68 - Step 6: Final answer
x = 114,009.48
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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.