Finding the Fourth Proportional to 135,909.10, 203,896.05 and 65,730.70
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Solution
The fourth proportional to 135,909.10, 203,896.05 and 65,730.70 is: 98,611.72
Step by Step Solution
- Step 1: Write the proportion equation
135,909.10 : 203,896.05 = 65,730.70 : x - Step 2: Convert to fraction form
135,909.10/203,896.05 = 65,730.70/x - Step 3: Cross multiply
135,909.10x = 203,896.05 × 65,730.70 - Step 4: Simplify right side
135,909.10x = 13,402,230,093.74 - Step 5: Solve for x
x = 13,402,230,093.74/135,909.10 - Step 6: Final answer
x = 98,611.72
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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.