Finding the Fourth Proportional to 143,824.74, 198,026.46 and 122,272.08
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Solution
The fourth proportional to 143,824.74, 198,026.46 and 122,272.08 is: 168,351.48
Step by Step Solution
- Step 1: Write the proportion equation
143,824.74 : 198,026.46 = 122,272.08 : x - Step 2: Convert to fraction form
143,824.74/198,026.46 = 122,272.08/x - Step 3: Cross multiply
143,824.74x = 198,026.46 × 122,272.08 - Step 4: Simplify right side
143,824.74x = 24,213,107,159.24 - Step 5: Solve for x
x = 24,213,107,159.24/143,824.74 - Step 6: Final answer
x = 168,351.48
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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.