Finding the Fourth Proportional to 145,703.69, 218,402.43 and 66,752.99
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Solution
The fourth proportional to 145,703.69, 218,402.43 and 66,752.99 is: 100,059.34
Step by Step Solution
- Step 1: Write the proportion equation
145,703.69 : 218,402.43 = 66,752.99 : x - Step 2: Convert to fraction form
145,703.69/218,402.43 = 66,752.99/x - Step 3: Cross multiply
145,703.69x = 218,402.43 × 66,752.99 - Step 4: Simplify right side
145,703.69x = 14,579,015,225.77 - Step 5: Solve for x
x = 14,579,015,225.77/145,703.69 - Step 6: Final answer
x = 100,059.34
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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.