Finding the Fourth Proportional to 143,076.12, 197,498.05 and 122,851.77
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Solution
The fourth proportional to 143,076.12, 197,498.05 and 122,851.77 is: 169,580.95
Step by Step Solution
- Step 1: Write the proportion equation
143,076.12 : 197,498.05 = 122,851.77 : x - Step 2: Convert to fraction form
143,076.12/197,498.05 = 122,851.77/x - Step 3: Cross multiply
143,076.12x = 197,498.05 × 122,851.77 - Step 4: Simplify right side
143,076.12x = 24,262,985,014.05 - Step 5: Solve for x
x = 24,262,985,014.05/143,076.12 - Step 6: Final answer
x = 169,580.95
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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.