Finding the Fourth Proportional to 106,377.89, 146,754.97 and 76,152.17
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Solution
The fourth proportional to 106,377.89, 146,754.97 and 76,152.17 is: 105,056.70
Step by Step Solution
- Step 1: Write the proportion equation
106,377.89 : 146,754.97 = 76,152.17 : x - Step 2: Convert to fraction form
106,377.89/146,754.97 = 76,152.17/x - Step 3: Cross multiply
106,377.89x = 146,754.97 × 76,152.17 - Step 4: Simplify right side
106,377.89x = 11,175,709,600.29 - Step 5: Solve for x
x = 11,175,709,600.29/106,377.89 - Step 6: Final answer
x = 105,056.70
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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.