Finding the Fourth Proportional to 135,953.28, 203,866.50 and 51,729.12
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Solution
The fourth proportional to 135,953.28, 203,866.50 and 51,729.12 is: 77,569.55
Step by Step Solution
- Step 1: Write the proportion equation
135,953.28 : 203,866.50 = 51,729.12 : x - Step 2: Convert to fraction form
135,953.28/203,866.50 = 51,729.12/x - Step 3: Cross multiply
135,953.28x = 203,866.50 × 51,729.12 - Step 4: Simplify right side
135,953.28x = 10,545,834,642.48 - Step 5: Solve for x
x = 10,545,834,642.48/135,953.28 - Step 6: Final answer
x = 77,569.55
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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.