Finding the Fourth Proportional to 105,670.92, 145,827.84 and 57,923.94
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Solution
The fourth proportional to 105,670.92, 145,827.84 and 57,923.94 is: 79,936.12
Step by Step Solution
- Step 1: Write the proportion equation
105,670.92 : 145,827.84 = 57,923.94 : x - Step 2: Convert to fraction form
105,670.92/145,827.84 = 57,923.94/x - Step 3: Cross multiply
105,670.92x = 145,827.84 × 57,923.94 - Step 4: Simplify right side
105,670.92x = 8,446,923,054.49 - Step 5: Solve for x
x = 8,446,923,054.49/105,670.92 - Step 6: Final answer
x = 79,936.12
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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.