Finding the Fourth Proportional to 136,656.08, 188,673.19 and 85,738.67
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Solution
The fourth proportional to 136,656.08, 188,673.19 and 85,738.67 is: 118,374.45
Step by Step Solution
- Step 1: Write the proportion equation
136,656.08 : 188,673.19 = 85,738.67 : x - Step 2: Convert to fraction form
136,656.08/188,673.19 = 85,738.67/x - Step 3: Cross multiply
136,656.08x = 188,673.19 × 85,738.67 - Step 4: Simplify right side
136,656.08x = 16,176,588,375.26 - Step 5: Solve for x
x = 16,176,588,375.26/136,656.08 - Step 6: Final answer
x = 118,374.45
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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.