Finding the Fourth Proportional to 159,206.10, 219,702.84 and 87,586.20
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Solution
The fourth proportional to 159,206.10, 219,702.84 and 87,586.20 is: 120,868.09
Step by Step Solution
- Step 1: Write the proportion equation
159,206.10 : 219,702.84 = 87,586.20 : x - Step 2: Convert to fraction form
159,206.10/219,702.84 = 87,586.20/x - Step 3: Cross multiply
159,206.10x = 219,702.84 × 87,586.20 - Step 4: Simplify right side
159,206.10x = 19,242,936,884.81 - Step 5: Solve for x
x = 19,242,936,884.81/159,206.10 - Step 6: Final answer
x = 120,868.09
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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.