Finding the Fourth Proportional to 128,734.65, 193,075.56 and 48,745.02
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Solution
The fourth proportional to 128,734.65, 193,075.56 and 48,745.02 is: 73,107.53
Step by Step Solution
- Step 1: Write the proportion equation
128,734.65 : 193,075.56 = 48,745.02 : x - Step 2: Convert to fraction form
128,734.65/193,075.56 = 48,745.02/x - Step 3: Cross multiply
128,734.65x = 193,075.56 × 48,745.02 - Step 4: Simplify right side
128,734.65x = 9,411,472,033.71 - Step 5: Solve for x
x = 9,411,472,033.71/128,734.65 - Step 6: Final answer
x = 73,107.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.