Finding the Fourth Proportional to 132,317.80, 198,476.70 and 79,829.80
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Solution
The fourth proportional to 132,317.80, 198,476.70 and 79,829.80 is: 119,744.70
Step by Step Solution
- Step 1: Write the proportion equation
132,317.80 : 198,476.70 = 79,829.80 : x - Step 2: Convert to fraction form
132,317.80/198,476.70 = 79,829.80/x - Step 3: Cross multiply
132,317.80x = 198,476.70 × 79,829.80 - Step 4: Simplify right side
132,317.80x = 15,844,355,265.66 - Step 5: Solve for x
x = 15,844,355,265.66/132,317.80 - Step 6: Final answer
x = 119,744.70
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1.5x scale
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.