Finding the Fourth Proportional to 126,639.25, 190,024.49 and 64,309.75
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Solution
The fourth proportional to 126,639.25, 190,024.49 and 64,309.75 is: 96,497.95
Step by Step Solution
- Step 1: Write the proportion equation
126,639.25 : 190,024.49 = 64,309.75 : x - Step 2: Convert to fraction form
126,639.25/190,024.49 = 64,309.75/x - Step 3: Cross multiply
126,639.25x = 190,024.49 × 64,309.75 - Step 4: Simplify right side
126,639.25x = 12,220,427,445.78 - Step 5: Solve for x
x = 12,220,427,445.78/126,639.25 - Step 6: Final answer
x = 96,497.95
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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.