Finding the Fourth Proportional to 115,794.40, 159,799.14 and 64,806.70
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Solution
The fourth proportional to 115,794.40, 159,799.14 and 64,806.70 is: 89,434.85
Step by Step Solution
- Step 1: Write the proportion equation
115,794.40 : 159,799.14 = 64,806.70 : x - Step 2: Convert to fraction form
115,794.40/159,799.14 = 64,806.70/x - Step 3: Cross multiply
115,794.40x = 159,799.14 × 64,806.70 - Step 4: Simplify right side
115,794.40x = 10,356,054,926.24 - Step 5: Solve for x
x = 10,356,054,926.24/115,794.40 - Step 6: Final answer
x = 89,434.85
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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.