Finding the Fourth Proportional to 125,876.76, 173,706.54 and 69,288.30
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Solution
The fourth proportional to 125,876.76, 173,706.54 and 69,288.30 is: 95,615.99
Step by Step Solution
- Step 1: Write the proportion equation
125,876.76 : 173,706.54 = 69,288.30 : x - Step 2: Convert to fraction form
125,876.76/173,706.54 = 69,288.30/x - Step 3: Cross multiply
125,876.76x = 173,706.54 × 69,288.30 - Step 4: Simplify right side
125,876.76x = 12,035,830,855.48 - Step 5: Solve for x
x = 12,035,830,855.48/125,876.76 - Step 6: Final answer
x = 95,615.99
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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.