Finding the Fourth Proportional to 159,115.08, 219,579.48 and 87,493.44
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Solution
The fourth proportional to 159,115.08, 219,579.48 and 87,493.44 is: 120,741.32
Step by Step Solution
- Step 1: Write the proportion equation
159,115.08 : 219,579.48 = 87,493.44 : x - Step 2: Convert to fraction form
159,115.08/219,579.48 = 87,493.44/x - Step 3: Cross multiply
159,115.08x = 219,579.48 × 87,493.44 - Step 4: Simplify right side
159,115.08x = 19,211,764,058.61 - Step 5: Solve for x
x = 19,211,764,058.61/159,115.08 - Step 6: Final answer
x = 120,741.32
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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.