Finding the Fourth Proportional to 133,065.80, 199,598.70 and 115,569.80
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Solution
The fourth proportional to 133,065.80, 199,598.70 and 115,569.80 is: 173,354.70
Step by Step Solution
- Step 1: Write the proportion equation
133,065.80 : 199,598.70 = 115,569.80 : x - Step 2: Convert to fraction form
133,065.80/199,598.70 = 115,569.80/x - Step 3: Cross multiply
133,065.80x = 199,598.70 × 115,569.80 - Step 4: Simplify right side
133,065.80x = 23,067,581,839.26 - Step 5: Solve for x
x = 23,067,581,839.26/133,065.80 - Step 6: Final answer
x = 173,354.70
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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.