Finding the Fourth Proportional to 158,399.50, 218,769.92 and 104,920.06
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Solution
The fourth proportional to 158,399.50, 218,769.92 and 104,920.06 is: 144,907.99
Step by Step Solution
- Step 1: Write the proportion equation
158,399.50 : 218,769.92 = 104,920.06 : x - Step 2: Convert to fraction form
158,399.50/218,769.92 = 104,920.06/x - Step 3: Cross multiply
158,399.50x = 218,769.92 × 104,920.06 - Step 4: Simplify right side
158,399.50x = 22,953,353,132.60 - Step 5: Solve for x
x = 22,953,353,132.60/158,399.50 - Step 6: Final answer
x = 144,907.99
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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.