Finding the Fourth Proportional to 159,232.30, 219,735.12 and 87,611.74
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Solution
The fourth proportional to 159,232.30, 219,735.12 and 87,611.74 is: 120,901.20
Step by Step Solution
- Step 1: Write the proportion equation
159,232.30 : 219,735.12 = 87,611.74 : x - Step 2: Convert to fraction form
159,232.30/219,735.12 = 87,611.74/x - Step 3: Cross multiply
159,232.30x = 219,735.12 × 87,611.74 - Step 4: Simplify right side
159,232.30x = 19,251,376,202.31 - Step 5: Solve for x
x = 19,251,376,202.31/159,232.30 - Step 6: Final answer
x = 120,901.20
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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.