Finding the Fourth Proportional to 112,320.68, 168,553.46 and 72,335.48
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Solution
The fourth proportional to 112,320.68, 168,553.46 and 72,335.48 is: 108,549.88
Step by Step Solution
- Step 1: Write the proportion equation
112,320.68 : 168,553.46 = 72,335.48 : x - Step 2: Convert to fraction form
112,320.68/168,553.46 = 72,335.48/x - Step 3: Cross multiply
112,320.68x = 168,553.46 × 72,335.48 - Step 4: Simplify right side
112,320.68x = 12,192,395,314.06 - Step 5: Solve for x
x = 12,192,395,314.06/112,320.68 - Step 6: Final answer
x = 108,549.88
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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.