Finding the Fourth Proportional to 83,655.26, 125,330.63 and 74,687.18
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Solution
The fourth proportional to 83,655.26, 125,330.63 and 74,687.18 is: 111,894.83
Step by Step Solution
- Step 1: Write the proportion equation
83,655.26 : 125,330.63 = 74,687.18 : x - Step 2: Convert to fraction form
83,655.26/125,330.63 = 74,687.18/x - Step 3: Cross multiply
83,655.26x = 125,330.63 × 74,687.18 - Step 4: Simplify right side
83,655.26x = 9,360,590,322.23 - Step 5: Solve for x
x = 9,360,590,322.23/83,655.26 - Step 6: Final answer
x = 111,894.83
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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.