Finding the Fourth Proportional to 135,056.13, 186,256.39 and 112,469.91
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Solution
The fourth proportional to 135,056.13, 186,256.39 and 112,469.91 is: 155,107.65
Step by Step Solution
- Step 1: Write the proportion equation
135,056.13 : 186,256.39 = 112,469.91 : x - Step 2: Convert to fraction form
135,056.13/186,256.39 = 112,469.91/x - Step 3: Cross multiply
135,056.13x = 186,256.39 × 112,469.91 - Step 4: Simplify right side
135,056.13x = 20,948,239,420.22 - Step 5: Solve for x
x = 20,948,239,420.22/135,056.13 - Step 6: Final answer
x = 155,107.65
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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.