Finding the Fourth Proportional to 142,775.22, 197,030.97 and 79,114.08
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Solution
The fourth proportional to 142,775.22, 197,030.97 and 79,114.08 is: 109,178.08
Step by Step Solution
- Step 1: Write the proportion equation
142,775.22 : 197,030.97 = 79,114.08 : x - Step 2: Convert to fraction form
142,775.22/197,030.97 = 79,114.08/x - Step 3: Cross multiply
142,775.22x = 197,030.97 × 79,114.08 - Step 4: Simplify right side
142,775.22x = 15,587,923,923.06 - Step 5: Solve for x
x = 15,587,923,923.06/142,775.22 - Step 6: Final answer
x = 109,178.08
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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.