Finding the Third Proportional to 128,130.75 and 162,033.75
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Solution
The third proportional to 128,130.75 and 162,033.75 is: 204,907.38
Step by Step Solution
- Step 1: Write the proportion equation
128,130.75 : 162,033.75 = 162,033.75 : x - Step 2: Convert to fraction form
128,130.75/162,033.75 = 162,033.75/x - Step 3: Cross multiply
128,130.75x = 162,033.75 × 162,033.75 - Step 4: Simplify right side
128,130.75x = 26,254,936,139.06 - Step 5: Solve for x
x = 26,254,936,139.06/128,130.75 - Step 6: Final answer
x = 204,907.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.