Finding the Fourth Proportional to 122,539.84, 183,846.68 and 43,643.80
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Solution
The fourth proportional to 122,539.84, 183,846.68 and 43,643.80 is: 65,478.85
Step by Step Solution
- Step 1: Write the proportion equation
122,539.84 : 183,846.68 = 43,643.80 : x - Step 2: Convert to fraction form
122,539.84/183,846.68 = 43,643.80/x - Step 3: Cross multiply
122,539.84x = 183,846.68 × 43,643.80 - Step 4: Simplify right side
122,539.84x = 8,023,767,732.58 - Step 5: Solve for x
x = 8,023,767,732.58/122,539.84 - Step 6: Final answer
x = 65,478.85
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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.