Finding the Fourth Proportional to 102,539.16, 141,487.08 and 68,493.06
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Solution
The fourth proportional to 102,539.16, 141,487.08 and 68,493.06 is: 94,509.09
Step by Step Solution
- Step 1: Write the proportion equation
102,539.16 : 141,487.08 = 68,493.06 : x - Step 2: Convert to fraction form
102,539.16/141,487.08 = 68,493.06/x - Step 3: Cross multiply
102,539.16x = 141,487.08 × 68,493.06 - Step 4: Simplify right side
102,539.16x = 9,690,883,059.66 - Step 5: Solve for x
x = 9,690,883,059.66/102,539.16 - Step 6: Final answer
x = 94,509.09
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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.