Finding the Fourth Proportional to 147,289.77, 203,261.31 and 83,628.99
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Solution
The fourth proportional to 147,289.77, 203,261.31 and 83,628.99 is: 115,408.82
Step by Step Solution
- Step 1: Write the proportion equation
147,289.77 : 203,261.31 = 83,628.99 : x - Step 2: Convert to fraction form
147,289.77/203,261.31 = 83,628.99/x - Step 3: Cross multiply
147,289.77x = 203,261.31 × 83,628.99 - Step 4: Simplify right side
147,289.77x = 16,998,538,061.38 - Step 5: Solve for x
x = 16,998,538,061.38/147,289.77 - Step 6: Final answer
x = 115,408.82
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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.