Finding the Fourth Proportional to 147.08, 202.97 and 84.86
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Solution
The fourth proportional to 147.08, 202.97 and 84.86 is: 117.11
Step by Step Solution
- Step 1: Write the proportion equation
147.08 : 202.97 = 84.86 : x - Step 2: Convert to fraction form
147.08/202.97 = 84.86/x - Step 3: Cross multiply
147.08x = 202.97 × 84.86 - Step 4: Simplify right side
147.08x = 17,224.12 - Step 5: Solve for x
x = 17,224.12/147.08 - Step 6: Final answer
x = 117.11
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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.