Finding the Fourth Proportional to 116,840.13, 161,239.16 and 63,124.98
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Solution
The fourth proportional to 116,840.13, 161,239.16 and 63,124.98 is: 87,112.35
Step by Step Solution
- Step 1: Write the proportion equation
116,840.13 : 161,239.16 = 63,124.98 : x - Step 2: Convert to fraction form
116,840.13/161,239.16 = 63,124.98/x - Step 3: Cross multiply
116,840.13x = 161,239.16 × 63,124.98 - Step 4: Simplify right side
116,840.13x = 10,178,218,434.59 - Step 5: Solve for x
x = 10,178,218,434.59/116,840.13 - Step 6: Final answer
x = 87,112.35
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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.