Finding the Fourth Proportional to 149,660.96, 206,536.95 and 85,128.53
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Solution
The fourth proportional to 149,660.96, 206,536.95 and 85,128.53 is: 117,480.12
Step by Step Solution
- Step 1: Write the proportion equation
149,660.96 : 206,536.95 = 85,128.53 : x - Step 2: Convert to fraction form
149,660.96/206,536.95 = 85,128.53/x - Step 3: Cross multiply
149,660.96x = 206,536.95 × 85,128.53 - Step 4: Simplify right side
149,660.96x = 17,582,186,944.18 - Step 5: Solve for x
x = 17,582,186,944.18/149,660.96 - Step 6: Final answer
x = 117,480.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.