Finding the Fourth Proportional to 140,857.04, 194,296.35 and 115,053.09
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Solution
The fourth proportional to 140,857.04, 194,296.35 and 115,053.09 is: 158,702.72
Step by Step Solution
- Step 1: Write the proportion equation
140,857.04 : 194,296.35 = 115,053.09 : x - Step 2: Convert to fraction form
140,857.04/194,296.35 = 115,053.09/x - Step 3: Cross multiply
140,857.04x = 194,296.35 × 115,053.09 - Step 4: Simplify right side
140,857.04x = 22,354,395,146.06 - Step 5: Solve for x
x = 22,354,395,146.06/140,857.04 - Step 6: Final answer
x = 158,702.72
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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.