Finding the Fourth Proportional to 145,952.95, 201,414.97 and 78,884.95
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Solution
The fourth proportional to 145,952.95, 201,414.97 and 78,884.95 is: 108,861.18
Step by Step Solution
- Step 1: Write the proportion equation
145,952.95 : 201,414.97 = 78,884.95 : x - Step 2: Convert to fraction form
145,952.95/201,414.97 = 78,884.95/x - Step 3: Cross multiply
145,952.95x = 201,414.97 × 78,884.95 - Step 4: Simplify right side
145,952.95x = 15,888,609,837.70 - Step 5: Solve for x
x = 15,888,609,837.70/145,952.95 - Step 6: Final answer
x = 108,861.18
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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.