Finding the Fourth Proportional to 125,636.74, 173,319.68 and 74,651.02
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Solution
The fourth proportional to 125,636.74, 173,319.68 and 74,651.02 is: 102,983.34
Step by Step Solution
- Step 1: Write the proportion equation
125,636.74 : 173,319.68 = 74,651.02 : x - Step 2: Convert to fraction form
125,636.74/173,319.68 = 74,651.02/x - Step 3: Cross multiply
125,636.74x = 173,319.68 × 74,651.02 - Step 4: Simplify right side
125,636.74x = 12,938,490,898.07 - Step 5: Solve for x
x = 12,938,490,898.07/125,636.74 - Step 6: Final answer
x = 102,983.34
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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.