Finding the Fourth Proportional to 159,587.41, 220,230.57 and 87,968.63
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Solution
The fourth proportional to 159,587.41, 220,230.57 and 87,968.63 is: 121,396.68
Step by Step Solution
- Step 1: Write the proportion equation
159,587.41 : 220,230.57 = 87,968.63 : x - Step 2: Convert to fraction form
159,587.41/220,230.57 = 87,968.63/x - Step 3: Cross multiply
159,587.41x = 220,230.57 × 87,968.63 - Step 4: Simplify right side
159,587.41x = 19,373,381,788.08 - Step 5: Solve for x
x = 19,373,381,788.08/159,587.41 - Step 6: Final answer
x = 121,396.68
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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.