Finding the Fourth Proportional to 142,056.99, 196,027.49 and 84,691.98
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Solution
The fourth proportional to 142,056.99, 196,027.49 and 84,691.98 is: 116,868.28
Step by Step Solution
- Step 1: Write the proportion equation
142,056.99 : 196,027.49 = 84,691.98 : x - Step 2: Convert to fraction form
142,056.99/196,027.49 = 84,691.98/x - Step 3: Cross multiply
142,056.99x = 196,027.49 × 84,691.98 - Step 4: Simplify right side
142,056.99x = 16,601,956,474.26 - Step 5: Solve for x
x = 16,601,956,474.26/142,056.99 - Step 6: Final answer
x = 116,868.28
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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.