Finding the Fourth Proportional to 147.05, 202.93 and 84.87
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Solution
The fourth proportional to 147.05, 202.93 and 84.87 is: 117.12
Step by Step Solution
- Step 1: Write the proportion equation
147.05 : 202.93 = 84.87 : x - Step 2: Convert to fraction form
147.05/202.93 = 84.87/x - Step 3: Cross multiply
147.05x = 202.93 × 84.87 - Step 4: Simplify right side
147.05x = 17,222.24 - Step 5: Solve for x
x = 17,222.24/147.05 - Step 6: Final answer
x = 117.12
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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.