Finding the Fourth Proportional to 145,728.96, 201,237.60 and 92,109.12
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Solution
The fourth proportional to 145,728.96, 201,237.60 and 92,109.12 is: 127,193.79
Step by Step Solution
- Step 1: Write the proportion equation
145,728.96 : 201,237.60 = 92,109.12 : x - Step 2: Convert to fraction form
145,728.96/201,237.60 = 92,109.12/x - Step 3: Cross multiply
145,728.96x = 201,237.60 × 92,109.12 - Step 4: Simplify right side
145,728.96x = 18,535,818,246.91 - Step 5: Solve for x
x = 18,535,818,246.91/145,728.96 - Step 6: Final answer
x = 127,193.79
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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.