Finding the Fourth Proportional to 115,420.23, 158,124.97 and 111,104.14
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Solution
The fourth proportional to 115,420.23, 158,124.97 and 111,104.14 is: 152,211.95
Step by Step Solution
- Step 1: Write the proportion equation
115,420.23 : 158,124.97 = 111,104.14 : x - Step 2: Convert to fraction form
115,420.23/158,124.97 = 111,104.14/x - Step 3: Cross multiply
115,420.23x = 158,124.97 × 111,104.14 - Step 4: Simplify right side
115,420.23x = 17,568,338,248.86 - Step 5: Solve for x
x = 17,568,338,248.86/115,420.23 - Step 6: Final answer
x = 152,211.95
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.