Finding the Fourth Proportional to 141,135.05, 194,759.12 and 83,776.79
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Solution
The fourth proportional to 141,135.05, 194,759.12 and 83,776.79 is: 115,607.66
Step by Step Solution
- Step 1: Write the proportion equation
141,135.05 : 194,759.12 = 83,776.79 : x - Step 2: Convert to fraction form
141,135.05/194,759.12 = 83,776.79/x - Step 3: Cross multiply
141,135.05x = 194,759.12 × 83,776.79 - Step 4: Simplify right side
141,135.05x = 16,316,293,477.94 - Step 5: Solve for x
x = 16,316,293,477.94/141,135.05 - Step 6: Final answer
x = 115,607.66
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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.