Finding the Fourth Proportional to 99,698.74, 149,576.34 and 40,576.84
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Solution
The fourth proportional to 99,698.74, 149,576.34 and 40,576.84 is: 60,876.75
Step by Step Solution
- Step 1: Write the proportion equation
99,698.74 : 149,576.34 = 40,576.84 : x - Step 2: Convert to fraction form
99,698.74/149,576.34 = 40,576.84/x - Step 3: Cross multiply
99,698.74x = 149,576.34 × 40,576.84 - Step 4: Simplify right side
99,698.74x = 6,069,335,215.97 - Step 5: Solve for x
x = 6,069,335,215.97/99,698.74 - Step 6: Final answer
x = 60,876.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.