Finding the Fourth Proportional to 159,462.48, 220,057.20 and 87,840.84
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Solution
The fourth proportional to 159,462.48, 220,057.20 and 87,840.84 is: 121,219.80
Step by Step Solution
- Step 1: Write the proportion equation
159,462.48 : 220,057.20 = 87,840.84 : x - Step 2: Convert to fraction form
159,462.48/220,057.20 = 87,840.84/x - Step 3: Cross multiply
159,462.48x = 220,057.20 × 87,840.84 - Step 4: Simplify right side
159,462.48x = 19,330,009,296.05 - Step 5: Solve for x
x = 19,330,009,296.05/159,462.48 - Step 6: Final answer
x = 121,219.80
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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.