Finding the Fourth Proportional to 84,744.90, 127,226.70 and 68,123.70
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Solution
The fourth proportional to 84,744.90, 127,226.70 and 68,123.70 is: 102,273.45
Step by Step Solution
- Step 1: Write the proportion equation
84,744.90 : 127,226.70 = 68,123.70 : x - Step 2: Convert to fraction form
84,744.90/127,226.70 = 68,123.70/x - Step 3: Cross multiply
84,744.90x = 127,226.70 × 68,123.70 - Step 4: Simplify right side
84,744.90x = 8,667,153,542.79 - Step 5: Solve for x
x = 8,667,153,542.79/84,744.90 - Step 6: Final answer
x = 102,273.45
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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.