Finding the Fourth Proportional to 126,785.61, 174,975.88 and 70,196.99
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Solution
The fourth proportional to 126,785.61, 174,975.88 and 70,196.99 is: 96,878.35
Step by Step Solution
- Step 1: Write the proportion equation
126,785.61 : 174,975.88 = 70,196.99 : x - Step 2: Convert to fraction form
126,785.61/174,975.88 = 70,196.99/x - Step 3: Cross multiply
126,785.61x = 174,975.88 × 70,196.99 - Step 4: Simplify right side
126,785.61x = 12,282,780,098.60 - Step 5: Solve for x
x = 12,282,780,098.60/126,785.61 - Step 6: Final answer
x = 96,878.35
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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.