Finding the Fourth Proportional to 135,487.74, 203,599.30 and 72,351.78
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Solution
The fourth proportional to 135,487.74, 203,599.30 and 72,351.78 is: 108,724.02
Step by Step Solution
- Step 1: Write the proportion equation
135,487.74 : 203,599.30 = 72,351.78 : x - Step 2: Convert to fraction form
135,487.74/203,599.30 = 72,351.78/x - Step 3: Cross multiply
135,487.74x = 203,599.30 × 72,351.78 - Step 4: Simplify right side
135,487.74x = 14,730,771,761.75 - Step 5: Solve for x
x = 14,730,771,761.75/135,487.74 - Step 6: Final answer
x = 108,724.02
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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.