Finding the Fourth Proportional to 137,240.73, 189,135.41 and 98,933.81
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Solution
The fourth proportional to 137,240.73, 189,135.41 and 98,933.81 is: 136,343.53
Step by Step Solution
- Step 1: Write the proportion equation
137,240.73 : 189,135.41 = 98,933.81 : x - Step 2: Convert to fraction form
137,240.73/189,135.41 = 98,933.81/x - Step 3: Cross multiply
137,240.73x = 189,135.41 × 98,933.81 - Step 4: Simplify right side
137,240.73x = 18,711,885,276.87 - Step 5: Solve for x
x = 18,711,885,276.87/137,240.73 - Step 6: Final answer
x = 136,343.53
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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.