Finding the Fourth Proportional to 140,866.68, 194,395.64 and 76,337.70
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Solution
The fourth proportional to 140,866.68, 194,395.64 and 76,337.70 is: 105,345.82
Step by Step Solution
- Step 1: Write the proportion equation
140,866.68 : 194,395.64 = 76,337.70 : x - Step 2: Convert to fraction form
140,866.68/194,395.64 = 76,337.70/x - Step 3: Cross multiply
140,866.68x = 194,395.64 × 76,337.70 - Step 4: Simplify right side
140,866.68x = 14,839,715,665.94 - Step 5: Solve for x
x = 14,839,715,665.94/140,866.68 - Step 6: Final answer
x = 105,345.82
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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.