Finding the Fourth Proportional to 121,297.05, 167,369.99 and 67,569.93
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Solution
The fourth proportional to 121,297.05, 167,369.99 and 67,569.93 is: 93,235.39
Step by Step Solution
- Step 1: Write the proportion equation
121,297.05 : 167,369.99 = 67,569.93 : x - Step 2: Convert to fraction form
121,297.05/167,369.99 = 67,569.93/x - Step 3: Cross multiply
121,297.05x = 167,369.99 × 67,569.93 - Step 4: Simplify right side
121,297.05x = 11,309,178,170.55 - Step 5: Solve for x
x = 11,309,178,170.55/121,297.05 - Step 6: Final answer
x = 93,235.39
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1.5x scale
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.