Finding the Fourth Proportional to 125,269.68, 172,879.23 and 74,312.58
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Solution
The fourth proportional to 125,269.68, 172,879.23 and 74,312.58 is: 102,555.55
Step by Step Solution
- Step 1: Write the proportion equation
125,269.68 : 172,879.23 = 74,312.58 : x - Step 2: Convert to fraction form
125,269.68/172,879.23 = 74,312.58/x - Step 3: Cross multiply
125,269.68x = 172,879.23 × 74,312.58 - Step 4: Simplify right side
125,269.68x = 12,847,101,238.15 - Step 5: Solve for x
x = 12,847,101,238.15/125,269.68 - Step 6: Final answer
x = 102,555.55
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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.