Finding the Fourth Proportional to 111,368.75, 153,696.21 and 61,067.75
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Solution
The fourth proportional to 111,368.75, 153,696.21 and 61,067.75 is: 84,277.52
Step by Step Solution
- Step 1: Write the proportion equation
111,368.75 : 153,696.21 = 61,067.75 : x - Step 2: Convert to fraction form
111,368.75/153,696.21 = 61,067.75/x - Step 3: Cross multiply
111,368.75x = 153,696.21 × 61,067.75 - Step 4: Simplify right side
111,368.75x = 9,385,881,728.23 - Step 5: Solve for x
x = 9,385,881,728.23/111,368.75 - Step 6: Final answer
x = 84,277.52
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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.