Finding the Fourth Proportional to 139,671.04, 192,750.41 and 79,244.23
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Solution
The fourth proportional to 139,671.04, 192,750.41 and 79,244.23 is: 109,359.52
Step by Step Solution
- Step 1: Write the proportion equation
139,671.04 : 192,750.41 = 79,244.23 : x - Step 2: Convert to fraction form
139,671.04/192,750.41 = 79,244.23/x - Step 3: Cross multiply
139,671.04x = 192,750.41 × 79,244.23 - Step 4: Simplify right side
139,671.04x = 15,274,357,822.63 - Step 5: Solve for x
x = 15,274,357,822.63/139,671.04 - Step 6: Final answer
x = 109,359.52
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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.