Finding the Fourth Proportional to 111,366.99, 153,708.78 and 66,070.12
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Solution
The fourth proportional to 111,366.99, 153,708.78 and 66,070.12 is: 91,190.02
Step by Step Solution
- Step 1: Write the proportion equation
111,366.99 : 153,708.78 = 66,070.12 : x - Step 2: Convert to fraction form
111,366.99/153,708.78 = 66,070.12/x - Step 3: Cross multiply
111,366.99x = 153,708.78 × 66,070.12 - Step 4: Simplify right side
111,366.99x = 10,155,557,539.65 - Step 5: Solve for x
x = 10,155,557,539.65/111,366.99 - Step 6: Final answer
x = 91,190.02
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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.