Finding the Fourth Proportional to 97.95, 145.79 and 97.65
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Solution
The fourth proportional to 97.95, 145.79 and 97.65 is: 145.34
Step by Step Solution
- Step 1: Write the proportion equation
97.95 : 145.79 = 97.65 : x - Step 2: Convert to fraction form
97.95/145.79 = 97.65/x - Step 3: Cross multiply
97.95x = 145.79 × 97.65 - Step 4: Simplify right side
97.95x = 14,235.91 - Step 5: Solve for x
x = 14,235.91/97.95 - Step 6: Final answer
x = 145.34
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.