Finding the Fourth Proportional to 112,835.07, 169,248.49 and 45,387.99
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Solution
The fourth proportional to 112,835.07, 169,248.49 and 45,387.99 is: 68,080.33
Step by Step Solution
- Step 1: Write the proportion equation
112,835.07 : 169,248.49 = 45,387.99 : x - Step 2: Convert to fraction form
112,835.07/169,248.49 = 45,387.99/x - Step 3: Cross multiply
112,835.07x = 169,248.49 × 45,387.99 - Step 4: Simplify right side
112,835.07x = 7,681,848,771.64 - Step 5: Solve for x
x = 7,681,848,771.64/112,835.07 - Step 6: Final answer
x = 68,080.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.