Finding the Fourth Proportional to 130,220.73, 196,307.12 and 121,540.70
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Solution
The fourth proportional to 130,220.73, 196,307.12 and 121,540.70 is: 183,222.02
Step by Step Solution
- Step 1: Write the proportion equation
130,220.73 : 196,307.12 = 121,540.70 : x - Step 2: Convert to fraction form
130,220.73/196,307.12 = 121,540.70/x - Step 3: Cross multiply
130,220.73x = 196,307.12 × 121,540.70 - Step 4: Simplify right side
130,220.73x = 23,859,305,574.40 - Step 5: Solve for x
x = 23,859,305,574.40/130,220.73 - Step 6: Final answer
x = 183,222.02
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.