Finding the Fourth Proportional to 111,134.16, 153,436.68 and 99,176.94
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Solution
The fourth proportional to 111,134.16, 153,436.68 and 99,176.94 is: 136,928.02
Step by Step Solution
- Step 1: Write the proportion equation
111,134.16 : 153,436.68 = 99,176.94 : x - Step 2: Convert to fraction form
111,134.16/153,436.68 = 99,176.94/x - Step 3: Cross multiply
111,134.16x = 153,436.68 × 99,176.94 - Step 4: Simplify right side
111,134.16x = 15,217,380,406.16 - Step 5: Solve for x
x = 15,217,380,406.16/111,134.16 - Step 6: Final answer
x = 136,928.02
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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.