Finding the Fourth Proportional to 159,054.23, 219,489.27 and 87,433.74
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Solution
The fourth proportional to 159,054.23, 219,489.27 and 87,433.74 is: 120,655.50
Step by Step Solution
- Step 1: Write the proportion equation
159,054.23 : 219,489.27 = 87,433.74 : x - Step 2: Convert to fraction form
159,054.23/219,489.27 = 87,433.74/x - Step 3: Cross multiply
159,054.23x = 219,489.27 × 87,433.74 - Step 4: Simplify right side
159,054.23x = 19,190,767,765.97 - Step 5: Solve for x
x = 19,190,767,765.97/159,054.23 - Step 6: Final answer
x = 120,655.50
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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.