Finding the Fourth Proportional to 104,289.62, 143,920.67 and 56,543.09
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Solution
The fourth proportional to 104,289.62, 143,920.67 and 56,543.09 is: 78,030.00
Step by Step Solution
- Step 1: Write the proportion equation
104,289.62 : 143,920.67 = 56,543.09 : x - Step 2: Convert to fraction form
104,289.62/143,920.67 = 56,543.09/x - Step 3: Cross multiply
104,289.62x = 143,920.67 × 56,543.09 - Step 4: Simplify right side
104,289.62x = 8,137,718,394.35 - Step 5: Solve for x
x = 8,137,718,394.35/104,289.62 - Step 6: Final answer
x = 78,030.00
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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.