Finding the Fourth Proportional to 135,144.05, 186,484.50 and 74,704.95
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Solution
The fourth proportional to 135,144.05, 186,484.50 and 74,704.95 is: 103,084.94
Step by Step Solution
- Step 1: Write the proportion equation
135,144.05 : 186,484.50 = 74,704.95 : x - Step 2: Convert to fraction form
135,144.05/186,484.50 = 74,704.95/x - Step 3: Cross multiply
135,144.05x = 186,484.50 × 74,704.95 - Step 4: Simplify right side
135,144.05x = 13,931,315,248.28 - Step 5: Solve for x
x = 13,931,315,248.28/135,144.05 - Step 6: Final answer
x = 103,084.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.