Finding the Fourth Proportional to 98,939.14, 148,415.58 and 39,774.84
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Solution
The fourth proportional to 98,939.14, 148,415.58 and 39,774.84 is: 59,665.02
Step by Step Solution
- Step 1: Write the proportion equation
98,939.14 : 148,415.58 = 39,774.84 : x - Step 2: Convert to fraction form
98,939.14/148,415.58 = 39,774.84/x - Step 3: Cross multiply
98,939.14x = 148,415.58 × 39,774.84 - Step 4: Simplify right side
98,939.14x = 5,903,205,948.01 - Step 5: Solve for x
x = 5,903,205,948.01/98,939.14 - Step 6: Final answer
x = 59,665.02
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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.