Finding the Fourth Proportional to 155,095.05, 214,029.84 and 87,113.07
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Solution
The fourth proportional to 155,095.05, 214,029.84 and 87,113.07 is: 120,215.29
Step by Step Solution
- Step 1: Write the proportion equation
155,095.05 : 214,029.84 = 87,113.07 : x - Step 2: Convert to fraction form
155,095.05/214,029.84 = 87,113.07/x - Step 3: Cross multiply
155,095.05x = 214,029.84 × 87,113.07 - Step 4: Simplify right side
155,095.05x = 18,644,796,760.68 - Step 5: Solve for x
x = 18,644,796,760.68/155,095.05 - Step 6: Final answer
x = 120,215.29
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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.