Finding the Fourth Proportional to 111,776.62, 154,248.66 and 61,475.62
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Solution
The fourth proportional to 111,776.62, 154,248.66 and 61,475.62 is: 84,834.66
Step by Step Solution
- Step 1: Write the proportion equation
111,776.62 : 154,248.66 = 61,475.62 : x - Step 2: Convert to fraction form
111,776.62/154,248.66 = 61,475.62/x - Step 3: Cross multiply
111,776.62x = 154,248.66 × 61,475.62 - Step 4: Simplify right side
111,776.62x = 9,482,532,007.67 - Step 5: Solve for x
x = 9,482,532,007.67/111,776.62 - Step 6: Final answer
x = 84,834.66
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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.