Finding the Fourth Proportional to 142,226.04, 196,286.58 and 81,798.96
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Solution
The fourth proportional to 142,226.04, 196,286.58 and 81,798.96 is: 112,890.99
Step by Step Solution
- Step 1: Write the proportion equation
142,226.04 : 196,286.58 = 81,798.96 : x - Step 2: Convert to fraction form
142,226.04/196,286.58 = 81,798.96/x - Step 3: Cross multiply
142,226.04x = 196,286.58 × 81,798.96 - Step 4: Simplify right side
142,226.04x = 16,056,038,105.96 - Step 5: Solve for x
x = 16,056,038,105.96/142,226.04 - Step 6: Final answer
x = 112,890.99
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1.5x scale
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.