Finding the Fourth Proportional to 129,800.41, 179,109.29 and 75,339.99
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Solution
The fourth proportional to 129,800.41, 179,109.29 and 75,339.99 is: 103,960.32
Step by Step Solution
- Step 1: Write the proportion equation
129,800.41 : 179,109.29 = 75,339.99 : x - Step 2: Convert to fraction form
129,800.41/179,109.29 = 75,339.99/x - Step 3: Cross multiply
129,800.41x = 179,109.29 × 75,339.99 - Step 4: Simplify right side
129,800.41x = 13,494,092,305.86 - Step 5: Solve for x
x = 13,494,092,305.86/129,800.41 - Step 6: Final answer
x = 103,960.32
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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.