Finding the Fourth Proportional to 102,361.12, 153,437.79 and 39,165.02
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Solution
The fourth proportional to 102,361.12, 153,437.79 and 39,165.02 is: 58,707.78
Step by Step Solution
- Step 1: Write the proportion equation
102,361.12 : 153,437.79 = 39,165.02 : x - Step 2: Convert to fraction form
102,361.12/153,437.79 = 39,165.02/x - Step 3: Cross multiply
102,361.12x = 153,437.79 × 39,165.02 - Step 4: Simplify right side
102,361.12x = 6,009,394,069.18 - Step 5: Solve for x
x = 6,009,394,069.18/102,361.12 - Step 6: Final answer
x = 58,707.78
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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.