Finding the Fourth Proportional to 100,880.19, 150,129.40 and 97,516.65
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Solution
The fourth proportional to 100,880.19, 150,129.40 and 97,516.65 is: 145,123.79
Step by Step Solution
- Step 1: Write the proportion equation
100,880.19 : 150,129.40 = 97,516.65 : x - Step 2: Convert to fraction form
100,880.19/150,129.40 = 97,516.65/x - Step 3: Cross multiply
100,880.19x = 150,129.40 × 97,516.65 - Step 4: Simplify right side
100,880.19x = 14,640,115,910.72 - Step 5: Solve for x
x = 14,640,115,910.72/100,880.19 - Step 6: Final answer
x = 145,123.79
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.