Finding the Fourth Proportional to 126,785.09, 174,961.95 and 69,423.86
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Solution
The fourth proportional to 126,785.09, 174,961.95 and 69,423.86 is: 95,804.12
Step by Step Solution
- Step 1: Write the proportion equation
126,785.09 : 174,961.95 = 69,423.86 : x - Step 2: Convert to fraction form
126,785.09/174,961.95 = 69,423.86/x - Step 3: Cross multiply
126,785.09x = 174,961.95 × 69,423.86 - Step 4: Simplify right side
126,785.09x = 12,146,533,922.13 - Step 5: Solve for x
x = 12,146,533,922.13/126,785.09 - Step 6: Final answer
x = 95,804.12
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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.