Finding the Fourth Proportional to 135,077.97, 202,553.34 and 78,934.31
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Solution
The fourth proportional to 135,077.97, 202,553.34 and 78,934.31 is: 118,364.28
Step by Step Solution
- Step 1: Write the proportion equation
135,077.97 : 202,553.34 = 78,934.31 : x - Step 2: Convert to fraction form
135,077.97/202,553.34 = 78,934.31/x - Step 3: Cross multiply
135,077.97x = 202,553.34 × 78,934.31 - Step 4: Simplify right side
135,077.97x = 15,988,407,118.33 - Step 5: Solve for x
x = 15,988,407,118.33/135,077.97 - Step 6: Final answer
x = 118,364.28
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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.