Finding the Fourth Proportional to 135.04, 202.64 and 83.76
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Solution
The fourth proportional to 135.04, 202.64 and 83.76 is: 125.69
Step by Step Solution
- Step 1: Write the proportion equation
135.04 : 202.64 = 83.76 : x - Step 2: Convert to fraction form
135.04/202.64 = 83.76/x - Step 3: Cross multiply
135.04x = 202.64 × 83.76 - Step 4: Simplify right side
135.04x = 16,973.13 - Step 5: Solve for x
x = 16,973.13/135.04 - Step 6: Final answer
x = 125.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.