Finding the Fourth Proportional to 134,585.40, 201,879.70 and 57,638.02
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Solution
The fourth proportional to 134,585.40, 201,879.70 and 57,638.02 is: 86,457.72
Step by Step Solution
- Step 1: Write the proportion equation
134,585.40 : 201,879.70 = 57,638.02 : x - Step 2: Convert to fraction form
134,585.40/201,879.70 = 57,638.02/x - Step 3: Cross multiply
134,585.40x = 201,879.70 × 57,638.02 - Step 4: Simplify right side
134,585.40x = 11,635,946,186.19 - Step 5: Solve for x
x = 11,635,946,186.19/134,585.40 - Step 6: Final answer
x = 86,457.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.