Finding the Fourth Proportional to 212,094.76, 292,697.14 and 121,479.96
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Solution
The fourth proportional to 212,094.76, 292,697.14 and 121,479.96 is: 167,645.99
Step by Step Solution
- Step 1: Write the proportion equation
212,094.76 : 292,697.14 = 121,479.96 : x - Step 2: Convert to fraction form
212,094.76/292,697.14 = 121,479.96/x - Step 3: Cross multiply
212,094.76x = 292,697.14 × 121,479.96 - Step 4: Simplify right side
212,094.76x = 35,556,836,859.31 - Step 5: Solve for x
x = 35,556,836,859.31/212,094.76 - Step 6: Final answer
x = 167,645.99
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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.