Finding the Fourth Proportional to 140,204.69, 193,475.16 and 76,530.19
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Solution
The fourth proportional to 140,204.69, 193,475.16 and 76,530.19 is: 105,607.66
Step by Step Solution
- Step 1: Write the proportion equation
140,204.69 : 193,475.16 = 76,530.19 : x - Step 2: Convert to fraction form
140,204.69/193,475.16 = 76,530.19/x - Step 3: Cross multiply
140,204.69x = 193,475.16 × 76,530.19 - Step 4: Simplify right side
140,204.69x = 14,806,689,984.40 - Step 5: Solve for x
x = 14,806,689,984.40/140,204.69 - Step 6: Final answer
x = 105,607.66
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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.