Finding the Fourth Proportional to 155.79, 214.99 and 93.58
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Solution
The fourth proportional to 155.79, 214.99 and 93.58 is: 129.14
Step by Step Solution
- Step 1: Write the proportion equation
155.79 : 214.99 = 93.58 : x - Step 2: Convert to fraction form
155.79/214.99 = 93.58/x - Step 3: Cross multiply
155.79x = 214.99 × 93.58 - Step 4: Simplify right side
155.79x = 20,117.99 - Step 5: Solve for x
x = 20,117.99/155.79 - Step 6: Final answer
x = 129.14
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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.