Finding the Fourth Proportional to 122,507.40, 183,713.52 and 47,617.62
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Solution
The fourth proportional to 122,507.40, 183,713.52 and 47,617.62 is: 71,407.94
Step by Step Solution
- Step 1: Write the proportion equation
122,507.40 : 183,713.52 = 47,617.62 : x - Step 2: Convert to fraction form
122,507.40/183,713.52 = 47,617.62/x - Step 3: Cross multiply
122,507.40x = 183,713.52 × 47,617.62 - Step 4: Simplify right side
122,507.40x = 8,748,000,584.22 - Step 5: Solve for x
x = 8,748,000,584.22/122,507.40 - Step 6: Final answer
x = 71,407.94
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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.