Finding the Fourth Proportional to 115,187.84, 173,308.80 and 68,475.68
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Solution
The fourth proportional to 115,187.84, 173,308.80 and 68,475.68 is: 103,026.83
Step by Step Solution
- Step 1: Write the proportion equation
115,187.84 : 173,308.80 = 68,475.68 : x - Step 2: Convert to fraction form
115,187.84/173,308.80 = 68,475.68/x - Step 3: Cross multiply
115,187.84x = 173,308.80 × 68,475.68 - Step 4: Simplify right side
115,187.84x = 11,867,437,929.98 - Step 5: Solve for x
x = 11,867,437,929.98/115,187.84 - Step 6: Final answer
x = 103,026.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.