Finding the Fourth Proportional to 159,217.53, 219,717.08 and 87,598.75
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Solution
The fourth proportional to 159,217.53, 219,717.08 and 87,598.75 is: 120,884.56
Step by Step Solution
- Step 1: Write the proportion equation
159,217.53 : 219,717.08 = 87,598.75 : x - Step 2: Convert to fraction form
159,217.53/219,717.08 = 87,598.75/x - Step 3: Cross multiply
159,217.53x = 219,717.08 × 87,598.75 - Step 4: Simplify right side
159,217.53x = 19,246,941,123.66 - Step 5: Solve for x
x = 19,246,941,123.66/159,217.53 - Step 6: Final answer
x = 120,884.56
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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.