Finding the Fourth Proportional to 138,542.08, 191,060.52 and 87,466.08
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Solution
The fourth proportional to 138,542.08, 191,060.52 and 87,466.08 is: 120,622.66
Step by Step Solution
- Step 1: Write the proportion equation
138,542.08 : 191,060.52 = 87,466.08 : x - Step 2: Convert to fraction form
138,542.08/191,060.52 = 87,466.08/x - Step 3: Cross multiply
138,542.08x = 191,060.52 × 87,466.08 - Step 4: Simplify right side
138,542.08x = 16,711,314,727.16 - Step 5: Solve for x
x = 16,711,314,727.16/138,542.08 - Step 6: Final answer
x = 120,622.66
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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.