Finding the Fourth Proportional to 111,427.36, 153,767.12 and 61,125.92
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Solution
The fourth proportional to 111,427.36, 153,767.12 and 61,125.92 is: 84,352.32
Step by Step Solution
- Step 1: Write the proportion equation
111,427.36 : 153,767.12 = 61,125.92 : x - Step 2: Convert to fraction form
111,427.36/153,767.12 = 61,125.92/x - Step 3: Cross multiply
111,427.36x = 153,767.12 × 61,125.92 - Step 4: Simplify right side
111,427.36x = 9,399,156,675.75 - Step 5: Solve for x
x = 9,399,156,675.75/111,427.36 - Step 6: Final answer
x = 84,352.32
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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.