Finding the Fourth Proportional to 97,701.80, 146,163.90 and 84,698.60
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Solution
The fourth proportional to 97,701.80, 146,163.90 and 84,698.60 is: 126,710.85
Step by Step Solution
- Step 1: Write the proportion equation
97,701.80 : 146,163.90 = 84,698.60 : x - Step 2: Convert to fraction form
97,701.80/146,163.90 = 84,698.60/x - Step 3: Cross multiply
97,701.80x = 146,163.90 × 84,698.60 - Step 4: Simplify right side
97,701.80x = 12,379,877,700.54 - Step 5: Solve for x
x = 12,379,877,700.54/97,701.80 - Step 6: Final answer
x = 126,710.85
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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.