Finding the Fourth Proportional to 111,447.36, 153,718.61 and 66,088.98
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Solution
The fourth proportional to 111,447.36, 153,718.61 and 66,088.98 is: 91,156.09
Step by Step Solution
- Step 1: Write the proportion equation
111,447.36 : 153,718.61 = 66,088.98 : x - Step 2: Convert to fraction form
111,447.36/153,718.61 = 66,088.98/x - Step 3: Cross multiply
111,447.36x = 153,718.61 × 66,088.98 - Step 4: Simplify right side
111,447.36x = 10,159,105,811.47 - Step 5: Solve for x
x = 10,159,105,811.47/111,447.36 - Step 6: Final answer
x = 91,156.09
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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.