Finding the Fourth Proportional to 125,023.36, 172,533.30 and 71,311.09
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Solution
The fourth proportional to 125,023.36, 172,533.30 and 71,311.09 is: 98,409.91
Step by Step Solution
- Step 1: Write the proportion equation
125,023.36 : 172,533.30 = 71,311.09 : x - Step 2: Convert to fraction form
125,023.36/172,533.30 = 71,311.09/x - Step 3: Cross multiply
125,023.36x = 172,533.30 × 71,311.09 - Step 4: Simplify right side
125,023.36x = 12,303,537,684.30 - Step 5: Solve for x
x = 12,303,537,684.30/125,023.36 - Step 6: Final answer
x = 98,409.91
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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.