Finding the Fourth Proportional to 125,207.79, 172,767.64 and 70,740.09
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Solution
The fourth proportional to 125,207.79, 172,767.64 and 70,740.09 is: 97,610.52
Step by Step Solution
- Step 1: Write the proportion equation
125,207.79 : 172,767.64 = 70,740.09 : x - Step 2: Convert to fraction form
125,207.79/172,767.64 = 70,740.09/x - Step 3: Cross multiply
125,207.79x = 172,767.64 × 70,740.09 - Step 4: Simplify right side
125,207.79x = 12,221,597,843.23 - Step 5: Solve for x
x = 12,221,597,843.23/125,207.79 - Step 6: Final answer
x = 97,610.52
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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.