Finding the Fourth Proportional to 125,250.68, 172,852.90 and 71,553.12
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Solution
The fourth proportional to 125,250.68, 172,852.90 and 71,553.12 is: 98,747.28
Step by Step Solution
- Step 1: Write the proportion equation
125,250.68 : 172,852.90 = 71,553.12 : x - Step 2: Convert to fraction form
125,250.68/172,852.90 = 71,553.12/x - Step 3: Cross multiply
125,250.68x = 172,852.90 × 71,553.12 - Step 4: Simplify right side
125,250.68x = 12,368,164,296.05 - Step 5: Solve for x
x = 12,368,164,296.05/125,250.68 - Step 6: Final answer
x = 98,747.28
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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.