Finding the Fourth Proportional to 141,453.19, 195,201.51 and 77,790.99
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Solution
The fourth proportional to 141,453.19, 195,201.51 and 77,790.99 is: 107,349.43
Step by Step Solution
- Step 1: Write the proportion equation
141,453.19 : 195,201.51 = 77,790.99 : x - Step 2: Convert to fraction form
141,453.19/195,201.51 = 77,790.99/x - Step 3: Cross multiply
141,453.19x = 195,201.51 × 77,790.99 - Step 4: Simplify right side
141,453.19x = 15,184,918,712.39 - Step 5: Solve for x
x = 15,184,918,712.39/141,453.19 - Step 6: Final answer
x = 107,349.43
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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.