Finding the Fourth Proportional to 135,661.10, 203,491.65 and 109,417.10
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Solution
The fourth proportional to 135,661.10, 203,491.65 and 109,417.10 is: 164,125.65
Step by Step Solution
- Step 1: Write the proportion equation
135,661.10 : 203,491.65 = 109,417.10 : x - Step 2: Convert to fraction form
135,661.10/203,491.65 = 109,417.10/x - Step 3: Cross multiply
135,661.10x = 203,491.65 × 109,417.10 - Step 4: Simplify right side
135,661.10x = 22,265,466,217.22 - Step 5: Solve for x
x = 22,265,466,217.22/135,661.10 - Step 6: Final answer
x = 164,125.65
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1.5x scale
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.