Finding the Fourth Proportional to 111,113.51, 153,337.86 and 63,369.68
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Solution
The fourth proportional to 111,113.51, 153,337.86 and 63,369.68 is: 87,450.85
Step by Step Solution
- Step 1: Write the proportion equation
111,113.51 : 153,337.86 = 63,369.68 : x - Step 2: Convert to fraction form
111,113.51/153,337.86 = 63,369.68/x - Step 3: Cross multiply
111,113.51x = 153,337.86 × 63,369.68 - Step 4: Simplify right side
111,113.51x = 9,716,970,353.40 - Step 5: Solve for x
x = 9,716,970,353.40/111,113.51 - Step 6: Final answer
x = 87,450.85
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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.