Finding the Fourth Proportional to 134,861.10, 202,291.65 and 87,621.90
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Solution
The fourth proportional to 134,861.10, 202,291.65 and 87,621.90 is: 131,432.85
Step by Step Solution
- Step 1: Write the proportion equation
134,861.10 : 202,291.65 = 87,621.90 : x - Step 2: Convert to fraction form
134,861.10/202,291.65 = 87,621.90/x - Step 3: Cross multiply
134,861.10x = 202,291.65 × 87,621.90 - Step 4: Simplify right side
134,861.10x = 17,725,178,727.14 - Step 5: Solve for x
x = 17,725,178,727.14/134,861.10 - Step 6: Final answer
x = 131,432.85
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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.