Finding the Fourth Proportional to 102.97, 141.99 and 67.98
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Solution
The fourth proportional to 102.97, 141.99 and 67.98 is: 93.74
Step by Step Solution
- Step 1: Write the proportion equation
102.97 : 141.99 = 67.98 : x - Step 2: Convert to fraction form
102.97/141.99 = 67.98/x - Step 3: Cross multiply
102.97x = 141.99 × 67.98 - Step 4: Simplify right side
102.97x = 9,652.48 - Step 5: Solve for x
x = 9,652.48/102.97 - Step 6: Final answer
x = 93.74
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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.