Finding the Fourth Proportional to 102,580.36, 141,449.28 and 66,703.84
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Solution
The fourth proportional to 102,580.36, 141,449.28 and 66,703.84 is: 91,978.72
Step by Step Solution
- Step 1: Write the proportion equation
102,580.36 : 141,449.28 = 66,703.84 : x - Step 2: Convert to fraction form
102,580.36/141,449.28 = 66,703.84/x - Step 3: Cross multiply
102,580.36x = 141,449.28 × 66,703.84 - Step 4: Simplify right side
102,580.36x = 9,435,210,141.24 - Step 5: Solve for x
x = 9,435,210,141.24/102,580.36 - Step 6: Final answer
x = 91,978.72
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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.