Finding the Fourth Proportional to 145,895.75, 201,336.18 and 78,827.75
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Solution
The fourth proportional to 145,895.75, 201,336.18 and 78,827.75 is: 108,782.32
Step by Step Solution
- Step 1: Write the proportion equation
145,895.75 : 201,336.18 = 78,827.75 : x - Step 2: Convert to fraction form
145,895.75/201,336.18 = 78,827.75/x - Step 3: Cross multiply
145,895.75x = 201,336.18 × 78,827.75 - Step 4: Simplify right side
145,895.75x = 15,870,878,063.00 - Step 5: Solve for x
x = 15,870,878,063.00/145,895.75 - Step 6: Final answer
x = 108,782.32
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1.5x scale
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.