Finding the Fourth Proportional to 102,403.20, 153,604.80 and 94,108.80
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Solution
The fourth proportional to 102,403.20, 153,604.80 and 94,108.80 is: 141,163.20
Step by Step Solution
- Step 1: Write the proportion equation
102,403.20 : 153,604.80 = 94,108.80 : x - Step 2: Convert to fraction form
102,403.20/153,604.80 = 94,108.80/x - Step 3: Cross multiply
102,403.20x = 153,604.80 × 94,108.80 - Step 4: Simplify right side
102,403.20x = 14,455,563,402.24 - Step 5: Solve for x
x = 14,455,563,402.24/102,403.20 - Step 6: Final answer
x = 141,163.20
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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.