Finding the Fourth Proportional to 101.68, 140.26 and 68.95
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Solution
The fourth proportional to 101.68, 140.26 and 68.95 is: 95.11
Step by Step Solution
- Step 1: Write the proportion equation
101.68 : 140.26 = 68.95 : x - Step 2: Convert to fraction form
101.68/140.26 = 68.95/x - Step 3: Cross multiply
101.68x = 140.26 × 68.95 - Step 4: Simplify right side
101.68x = 9,670.93 - Step 5: Solve for x
x = 9,670.93/101.68 - Step 6: Final answer
x = 95.11
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.