Finding the Fourth Proportional to 115,909.80, 173,536.65 and 102,787.80
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Solution
The fourth proportional to 115,909.80, 173,536.65 and 102,787.80 is: 153,890.79
Step by Step Solution
- Step 1: Write the proportion equation
115,909.80 : 173,536.65 = 102,787.80 : x - Step 2: Convert to fraction form
115,909.80/173,536.65 = 102,787.80/x - Step 3: Cross multiply
115,909.80x = 173,536.65 × 102,787.80 - Step 4: Simplify right side
115,909.80x = 17,837,450,472.87 - Step 5: Solve for x
x = 17,837,450,472.87/115,909.80 - Step 6: Final answer
x = 153,890.79
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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.