Finding the Fourth Proportional to 124,361.68, 186,541.14 and 74,455.72
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Solution
The fourth proportional to 124,361.68, 186,541.14 and 74,455.72 is: 111,682.75
Step by Step Solution
- Step 1: Write the proportion equation
124,361.68 : 186,541.14 = 74,455.72 : x - Step 2: Convert to fraction form
124,361.68/186,541.14 = 74,455.72/x - Step 3: Cross multiply
124,361.68x = 186,541.14 × 74,455.72 - Step 4: Simplify right side
124,361.68x = 13,889,054,888.32 - Step 5: Solve for x
x = 13,889,054,888.32/124,361.68 - Step 6: Final answer
x = 111,682.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.