Finding the Fourth Proportional to 135,280.08, 186,738.84 and 121,108.32
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Solution
The fourth proportional to 135,280.08, 186,738.84 and 121,108.32 is: 167,176.33
Step by Step Solution
- Step 1: Write the proportion equation
135,280.08 : 186,738.84 = 121,108.32 : x - Step 2: Convert to fraction form
135,280.08/186,738.84 = 121,108.32/x - Step 3: Cross multiply
135,280.08x = 186,738.84 × 121,108.32 - Step 4: Simplify right side
135,280.08x = 22,615,627,191.15 - Step 5: Solve for x
x = 22,615,627,191.15/135,280.08 - Step 6: Final answer
x = 167,176.33
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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.