Finding the Fourth Proportional to 110,992.62, 153,186.96 and 87,298.92
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Solution
The fourth proportional to 110,992.62, 153,186.96 and 87,298.92 is: 120,485.99
Step by Step Solution
- Step 1: Write the proportion equation
110,992.62 : 153,186.96 = 87,298.92 : x - Step 2: Convert to fraction form
110,992.62/153,186.96 = 87,298.92/x - Step 3: Cross multiply
110,992.62x = 153,186.96 × 87,298.92 - Step 4: Simplify right side
110,992.62x = 13,373,056,166.08 - Step 5: Solve for x
x = 13,373,056,166.08/110,992.62 - Step 6: Final answer
x = 120,485.99
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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.