Finding the Fourth Proportional to 196,785.68, 271,515.93 and 115,101.23
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Solution
The fourth proportional to 196,785.68, 271,515.93 and 115,101.23 is: 158,811.44
Step by Step Solution
- Step 1: Write the proportion equation
196,785.68 : 271,515.93 = 115,101.23 : x - Step 2: Convert to fraction form
196,785.68/271,515.93 = 115,101.23/x - Step 3: Cross multiply
196,785.68x = 271,515.93 × 115,101.23 - Step 4: Simplify right side
196,785.68x = 31,251,817,507.59 - Step 5: Solve for x
x = 31,251,817,507.59/196,785.68 - Step 6: Final answer
x = 158,811.44
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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.