Finding the Fourth Proportional to 115,009.84, 172,460.08 and 40,120.92
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Solution
The fourth proportional to 115,009.84, 172,460.08 and 40,120.92 is: 60,162.31
Step by Step Solution
- Step 1: Write the proportion equation
115,009.84 : 172,460.08 = 40,120.92 : x - Step 2: Convert to fraction form
115,009.84/172,460.08 = 40,120.92/x - Step 3: Cross multiply
115,009.84x = 172,460.08 × 40,120.92 - Step 4: Simplify right side
115,009.84x = 6,919,257,072.87 - Step 5: Solve for x
x = 6,919,257,072.87/115,009.84 - Step 6: Final answer
x = 60,162.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.