Finding the Fourth Proportional to 115,551.49, 159,401.35 and 73,134.63
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Solution
The fourth proportional to 115,551.49, 159,401.35 and 73,134.63 is: 100,887.99
Step by Step Solution
- Step 1: Write the proportion equation
115,551.49 : 159,401.35 = 73,134.63 : x - Step 2: Convert to fraction form
115,551.49/159,401.35 = 73,134.63/x - Step 3: Cross multiply
115,551.49x = 159,401.35 × 73,134.63 - Step 4: Simplify right side
115,551.49x = 11,657,757,956.74 - Step 5: Solve for x
x = 11,657,757,956.74/115,551.49 - Step 6: Final answer
x = 100,887.99
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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.