Finding the Fourth Proportional to 159,090.05, 219,544.58 and 87,470.09
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Solution
The fourth proportional to 159,090.05, 219,544.58 and 87,470.09 is: 120,708.89
Step by Step Solution
- Step 1: Write the proportion equation
159,090.05 : 219,544.58 = 87,470.09 : x - Step 2: Convert to fraction form
159,090.05/219,544.58 = 87,470.09/x - Step 3: Cross multiply
159,090.05x = 219,544.58 × 87,470.09 - Step 4: Simplify right side
159,090.05x = 19,203,583,932.57 - Step 5: Solve for x
x = 19,203,583,932.57/159,090.05 - Step 6: Final answer
x = 120,708.89
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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.