Finding the Fourth Proportional to 169,828.20, 234,389.16 and 122,239.08
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Solution
The fourth proportional to 169,828.20, 234,389.16 and 122,239.08 is: 168,708.82
Step by Step Solution
- Step 1: Write the proportion equation
169,828.20 : 234,389.16 = 122,239.08 : x - Step 2: Convert to fraction form
169,828.20/234,389.16 = 122,239.08/x - Step 3: Cross multiply
169,828.20x = 234,389.16 × 122,239.08 - Step 4: Simplify right side
169,828.20x = 28,651,515,280.37 - Step 5: Solve for x
x = 28,651,515,280.37/169,828.20 - Step 6: Final answer
x = 168,708.82
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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.