Finding the Fourth Proportional to 97,734.94, 134,790.87 and 75,128.70
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Solution
The fourth proportional to 97,734.94, 134,790.87 and 75,128.70 is: 103,613.54
Step by Step Solution
- Step 1: Write the proportion equation
97,734.94 : 134,790.87 = 75,128.70 : x - Step 2: Convert to fraction form
97,734.94/134,790.87 = 75,128.70/x - Step 3: Cross multiply
97,734.94x = 134,790.87 × 75,128.70 - Step 4: Simplify right side
97,734.94x = 10,126,662,834.97 - Step 5: Solve for x
x = 10,126,662,834.97/97,734.94 - Step 6: Final answer
x = 103,613.54
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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.