Finding the Fourth Proportional to 159,187.11, 219,673.53 and 87,567.09
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Solution
The fourth proportional to 159,187.11, 219,673.53 and 87,567.09 is: 120,840.01
Step by Step Solution
- Step 1: Write the proportion equation
159,187.11 : 219,673.53 = 87,567.09 : x - Step 2: Convert to fraction form
159,187.11/219,673.53 = 87,567.09/x - Step 3: Cross multiply
159,187.11x = 219,673.53 × 87,567.09 - Step 4: Simplify right side
159,187.11x = 19,236,171,772.13 - Step 5: Solve for x
x = 19,236,171,772.13/159,187.11 - Step 6: Final answer
x = 120,840.01
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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.