Finding the Fourth Proportional to 135,292.26, 202,938.30 and 85,448.10
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Solution
The fourth proportional to 135,292.26, 202,938.30 and 85,448.10 is: 128,172.09
Step by Step Solution
- Step 1: Write the proportion equation
135,292.26 : 202,938.30 = 85,448.10 : x - Step 2: Convert to fraction form
135,292.26/202,938.30 = 85,448.10/x - Step 3: Cross multiply
135,292.26x = 202,938.30 × 85,448.10 - Step 4: Simplify right side
135,292.26x = 17,340,692,152.23 - Step 5: Solve for x
x = 17,340,692,152.23/135,292.26 - Step 6: Final answer
x = 128,172.09
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1.5x scale
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.