Finding the Fourth Proportional to 125,718.15, 173,491.05 and 69,129.53
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Solution
The fourth proportional to 125,718.15, 173,491.05 and 69,129.53 is: 95,398.75
Step by Step Solution
- Step 1: Write the proportion equation
125,718.15 : 173,491.05 = 69,129.53 : x - Step 2: Convert to fraction form
125,718.15/173,491.05 = 69,129.53/x - Step 3: Cross multiply
125,718.15x = 173,491.05 × 69,129.53 - Step 4: Simplify right side
125,718.15x = 11,993,354,788.08 - Step 5: Solve for x
x = 11,993,354,788.08/125,718.15 - Step 6: Final answer
x = 95,398.75
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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.