Finding the Fourth Proportional to 127,938.15, 191,907.05 and 34,443.99
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Solution
The fourth proportional to 127,938.15, 191,907.05 and 34,443.99 is: 51,665.94
Step by Step Solution
- Step 1: Write the proportion equation
127,938.15 : 191,907.05 = 34,443.99 : x - Step 2: Convert to fraction form
127,938.15/191,907.05 = 34,443.99/x - Step 3: Cross multiply
127,938.15x = 191,907.05 × 34,443.99 - Step 4: Simplify right side
127,938.15x = 6,610,044,338.91 - Step 5: Solve for x
x = 6,610,044,338.91/127,938.15 - Step 6: Final answer
x = 51,665.94
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1.5x scale
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.