Finding the Fourth Proportional to 122,506.80, 183,781.80 and 43,666.80
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Solution
The fourth proportional to 122,506.80, 183,781.80 and 43,666.80 is: 65,507.90
Step by Step Solution
- Step 1: Write the proportion equation
122,506.80 : 183,781.80 = 43,666.80 : x - Step 2: Convert to fraction form
122,506.80/183,781.80 = 43,666.80/x - Step 3: Cross multiply
122,506.80x = 183,781.80 × 43,666.80 - Step 4: Simplify right side
122,506.80x = 8,025,163,104.24 - Step 5: Solve for x
x = 8,025,163,104.24/122,506.80 - Step 6: Final answer
x = 65,507.90
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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.