Finding the Fourth Proportional to 159,433.13, 220,027.70 and 87,813.12
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Solution
The fourth proportional to 159,433.13, 220,027.70 and 87,813.12 is: 121,187.60
Step by Step Solution
- Step 1: Write the proportion equation
159,433.13 : 220,027.70 = 87,813.12 : x - Step 2: Convert to fraction form
159,433.13/220,027.70 = 87,813.12/x - Step 3: Cross multiply
159,433.13x = 220,027.70 × 87,813.12 - Step 4: Simplify right side
159,433.13x = 19,321,318,384.36 - Step 5: Solve for x
x = 19,321,318,384.36/159,433.13 - Step 6: Final answer
x = 121,187.60
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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.