Finding the Fourth Proportional to 115,368.08, 159,207.96 and 65,067.08
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Solution
The fourth proportional to 115,368.08, 159,207.96 and 65,067.08 is: 89,792.58
Step by Step Solution
- Step 1: Write the proportion equation
115,368.08 : 159,207.96 = 65,067.08 : x - Step 2: Convert to fraction form
115,368.08/159,207.96 = 65,067.08/x - Step 3: Cross multiply
115,368.08x = 159,207.96 × 65,067.08 - Step 4: Simplify right side
115,368.08x = 10,359,197,069.96 - Step 5: Solve for x
x = 10,359,197,069.96/115,368.08 - Step 6: Final answer
x = 89,792.58
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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.