Finding the Fourth Proportional to 107,964.24, 148,990.85 and 60,220.68
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Solution
The fourth proportional to 107,964.24, 148,990.85 and 60,220.68 is: 83,104.65
Step by Step Solution
- Step 1: Write the proportion equation
107,964.24 : 148,990.85 = 60,220.68 : x - Step 2: Convert to fraction form
107,964.24/148,990.85 = 60,220.68/x - Step 3: Cross multiply
107,964.24x = 148,990.85 × 60,220.68 - Step 4: Simplify right side
107,964.24x = 8,972,330,300.78 - Step 5: Solve for x
x = 8,972,330,300.78/107,964.24 - Step 6: Final answer
x = 83,104.65
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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.