Finding the Fourth Proportional to 121,565.44, 167,768.76 and 67,860.94
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Solution
The fourth proportional to 121,565.44, 167,768.76 and 67,860.94 is: 93,652.82
Step by Step Solution
- Step 1: Write the proportion equation
121,565.44 : 167,768.76 = 67,860.94 : x - Step 2: Convert to fraction form
121,565.44/167,768.76 = 67,860.94/x - Step 3: Cross multiply
121,565.44x = 167,768.76 × 67,860.94 - Step 4: Simplify right side
121,565.44x = 11,384,945,756.23 - Step 5: Solve for x
x = 11,384,945,756.23/121,565.44 - Step 6: Final answer
x = 93,652.82
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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.