Finding the Fourth Proportional to 128,494.53, 192,681.81 and 48,470.84
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Solution
The fourth proportional to 128,494.53, 192,681.81 and 48,470.84 is: 72,683.63
Step by Step Solution
- Step 1: Write the proportion equation
128,494.53 : 192,681.81 = 48,470.84 : x - Step 2: Convert to fraction form
128,494.53/192,681.81 = 48,470.84/x - Step 3: Cross multiply
128,494.53x = 192,681.81 × 48,470.84 - Step 4: Simplify right side
128,494.53x = 9,339,449,183.42 - Step 5: Solve for x
x = 9,339,449,183.42/128,494.53 - Step 6: Final answer
x = 72,683.63
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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.