Finding the Fourth Proportional to 169,904.49, 234,122.70 and 131,430.40
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Solution
The fourth proportional to 169,904.49, 234,122.70 and 131,430.40 is: 181,106.70
Step by Step Solution
- Step 1: Write the proportion equation
169,904.49 : 234,122.70 = 131,430.40 : x - Step 2: Convert to fraction form
169,904.49/234,122.70 = 131,430.40/x - Step 3: Cross multiply
169,904.49x = 234,122.70 × 131,430.40 - Step 4: Simplify right side
169,904.49x = 30,770,840,017.64 - Step 5: Solve for x
x = 30,770,840,017.64/169,904.49 - Step 6: Final answer
x = 181,106.70
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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.