Finding the Fourth Proportional to 133,275.82, 183,902.88 and 85,593.76
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Solution
The fourth proportional to 133,275.82, 183,902.88 and 85,593.76 is: 118,107.99
Step by Step Solution
- Step 1: Write the proportion equation
133,275.82 : 183,902.88 = 85,593.76 : x - Step 2: Convert to fraction form
133,275.82/183,902.88 = 85,593.76/x - Step 3: Cross multiply
133,275.82x = 183,902.88 × 85,593.76 - Step 4: Simplify right side
133,275.82x = 15,740,938,974.03 - Step 5: Solve for x
x = 15,740,938,974.03/133,275.82 - Step 6: Final answer
x = 118,107.99
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1.5x scale
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.