Finding the Fourth Proportional to 111,807.74, 154,267.98 and 75,576.75
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Solution
The fourth proportional to 111,807.74, 154,267.98 and 75,576.75 is: 104,277.86
Step by Step Solution
- Step 1: Write the proportion equation
111,807.74 : 154,267.98 = 75,576.75 : x - Step 2: Convert to fraction form
111,807.74/154,267.98 = 75,576.75/x - Step 3: Cross multiply
111,807.74x = 154,267.98 × 75,576.75 - Step 4: Simplify right side
111,807.74x = 11,659,071,695.55 - Step 5: Solve for x
x = 11,659,071,695.55/111,807.74 - Step 6: Final answer
x = 104,277.86
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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.