Finding the Fourth Proportional to 107,187.78, 147,748.68 and 84,489.96
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Solution
The fourth proportional to 107,187.78, 147,748.68 and 84,489.96 is: 116,461.78
Step by Step Solution
- Step 1: Write the proportion equation
107,187.78 : 147,748.68 = 84,489.96 : x - Step 2: Convert to fraction form
107,187.78/147,748.68 = 84,489.96/x - Step 3: Cross multiply
107,187.78x = 147,748.68 × 84,489.96 - Step 4: Simplify right side
107,187.78x = 12,483,280,063.25 - Step 5: Solve for x
x = 12,483,280,063.25/107,187.78 - Step 6: Final answer
x = 116,461.78
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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.