Finding the Fourth Proportional to 136,000.89, 187,677.50 and 75,569.99
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Solution
The fourth proportional to 136,000.89, 187,677.50 and 75,569.99 is: 104,284.50
Step by Step Solution
- Step 1: Write the proportion equation
136,000.89 : 187,677.50 = 75,569.99 : x - Step 2: Convert to fraction form
136,000.89/187,677.50 = 75,569.99/x - Step 3: Cross multiply
136,000.89x = 187,677.50 × 75,569.99 - Step 4: Simplify right side
136,000.89x = 14,182,785,481.99 - Step 5: Solve for x
x = 14,182,785,481.99/136,000.89 - Step 6: Final answer
x = 104,284.50
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1.5x scale
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.