Finding the Fourth Proportional to 84,205.90, 125,937.06 and 74,911.42
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Solution
The fourth proportional to 84,205.90, 125,937.06 and 74,911.42 is: 112,036.38
Step by Step Solution
- Step 1: Write the proportion equation
84,205.90 : 125,937.06 = 74,911.42 : x - Step 2: Convert to fraction form
84,205.90/125,937.06 = 74,911.42/x - Step 3: Cross multiply
84,205.90x = 125,937.06 × 74,911.42 - Step 4: Simplify right side
84,205.90x = 9,434,123,995.23 - Step 5: Solve for x
x = 9,434,123,995.23/84,205.90 - Step 6: Final answer
x = 112,036.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.