Finding the Fourth Proportional to 118.08, 162.95 and 65.62
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Solution
The fourth proportional to 118.08, 162.95 and 65.62 is: 90.56
Step by Step Solution
- Step 1: Write the proportion equation
118.08 : 162.95 = 65.62 : x - Step 2: Convert to fraction form
118.08/162.95 = 65.62/x - Step 3: Cross multiply
118.08x = 162.95 × 65.62 - Step 4: Simplify right side
118.08x = 10,692.78 - Step 5: Solve for x
x = 10,692.78/118.08 - Step 6: Final answer
x = 90.56
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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.