Finding the Fourth Proportional to 135.31, 202.52 and 83.99
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Solution
The fourth proportional to 135.31, 202.52 and 83.99 is: 125.71
Step by Step Solution
- Step 1: Write the proportion equation
135.31 : 202.52 = 83.99 : x - Step 2: Convert to fraction form
135.31/202.52 = 83.99/x - Step 3: Cross multiply
135.31x = 202.52 × 83.99 - Step 4: Simplify right side
135.31x = 17,009.23 - Step 5: Solve for x
x = 17,009.23/135.31 - Step 6: Final answer
x = 125.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.