Finding the Fourth Proportional to 122,861.52, 169,554.36 and 69,150.02
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Solution
The fourth proportional to 122,861.52, 169,554.36 and 69,150.02 is: 95,430.09
Step by Step Solution
- Step 1: Write the proportion equation
122,861.52 : 169,554.36 = 69,150.02 : x - Step 2: Convert to fraction form
122,861.52/169,554.36 = 69,150.02/x - Step 3: Cross multiply
122,861.52x = 169,554.36 × 69,150.02 - Step 4: Simplify right side
122,861.52x = 11,724,686,191.57 - Step 5: Solve for x
x = 11,724,686,191.57/122,861.52 - Step 6: Final answer
x = 95,430.09
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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.