Finding the Fourth Proportional to 121,227.60, 167,338.98 and 104,163.60
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Solution
The fourth proportional to 121,227.60, 167,338.98 and 104,163.60 is: 143,784.34
Step by Step Solution
- Step 1: Write the proportion equation
121,227.60 : 167,338.98 = 104,163.60 : x - Step 2: Convert to fraction form
121,227.60/167,338.98 = 104,163.60/x - Step 3: Cross multiply
121,227.60x = 167,338.98 × 104,163.60 - Step 4: Simplify right side
121,227.60x = 17,430,630,577.13 - Step 5: Solve for x
x = 17,430,630,577.13/121,227.60 - Step 6: Final answer
x = 143,784.34
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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.