Finding the Fourth Proportional to 147.11, 202.95 and 84.92
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Solution
The fourth proportional to 147.11, 202.95 and 84.92 is: 117.16
Step by Step Solution
- Step 1: Write the proportion equation
147.11 : 202.95 = 84.92 : x - Step 2: Convert to fraction form
147.11/202.95 = 84.92/x - Step 3: Cross multiply
147.11x = 202.95 × 84.92 - Step 4: Simplify right side
147.11x = 17,235.28 - Step 5: Solve for x
x = 17,235.28/147.11 - Step 6: Final answer
x = 117.16
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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.