Finding the Fourth Proportional to 124,618.56, 171,983.43 and 70,905.84
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Solution
The fourth proportional to 124,618.56, 171,983.43 and 70,905.84 is: 97,855.65
Step by Step Solution
- Step 1: Write the proportion equation
124,618.56 : 171,983.43 = 70,905.84 : x - Step 2: Convert to fraction form
124,618.56/171,983.43 = 70,905.84/x - Step 3: Cross multiply
124,618.56x = 171,983.43 × 70,905.84 - Step 4: Simplify right side
124,618.56x = 12,194,629,570.23 - Step 5: Solve for x
x = 12,194,629,570.23/124,618.56 - Step 6: Final answer
x = 97,855.65
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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.