Finding the Fourth Proportional to 128,097.37, 192,153.04 and 53,225.08
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Solution
The fourth proportional to 128,097.37, 192,153.04 and 53,225.08 is: 79,840.53
Step by Step Solution
- Step 1: Write the proportion equation
128,097.37 : 192,153.04 = 53,225.08 : x - Step 2: Convert to fraction form
128,097.37/192,153.04 = 53,225.08/x - Step 3: Cross multiply
128,097.37x = 192,153.04 × 53,225.08 - Step 4: Simplify right side
128,097.37x = 10,227,361,693.05 - Step 5: Solve for x
x = 10,227,361,693.05/128,097.37 - Step 6: Final answer
x = 79,840.53
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1.5x scale
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.