Finding the Fourth Proportional to 131,975.24, 182,128.11 and 75,387.02
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Solution
The fourth proportional to 131,975.24, 182,128.11 and 75,387.02 is: 104,035.39
Step by Step Solution
- Step 1: Write the proportion equation
131,975.24 : 182,128.11 = 75,387.02 : x - Step 2: Convert to fraction form
131,975.24/182,128.11 = 75,387.02/x - Step 3: Cross multiply
131,975.24x = 182,128.11 × 75,387.02 - Step 4: Simplify right side
131,975.24x = 13,730,095,471.13 - Step 5: Solve for x
x = 13,730,095,471.13/131,975.24 - Step 6: Final answer
x = 104,035.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.