Finding the Fourth Proportional to 92,142.19, 138,149.15 and 40,822.99
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Solution
The fourth proportional to 92,142.19, 138,149.15 and 40,822.99 is: 61,206.07
Step by Step Solution
- Step 1: Write the proportion equation
92,142.19 : 138,149.15 = 40,822.99 : x - Step 2: Convert to fraction form
92,142.19/138,149.15 = 40,822.99/x - Step 3: Cross multiply
92,142.19x = 138,149.15 × 40,822.99 - Step 4: Simplify right side
92,142.19x = 5,639,661,125.64 - Step 5: Solve for x
x = 5,639,661,125.64/92,142.19 - Step 6: Final answer
x = 61,206.07
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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.