Finding the Fourth Proportional to 105,126.38, 157,759.21 and 57,774.53
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Solution
The fourth proportional to 105,126.38, 157,759.21 and 57,774.53 is: 86,700.07
Step by Step Solution
- Step 1: Write the proportion equation
105,126.38 : 157,759.21 = 57,774.53 : x - Step 2: Convert to fraction form
105,126.38/157,759.21 = 57,774.53/x - Step 3: Cross multiply
105,126.38x = 157,759.21 × 57,774.53 - Step 4: Simplify right side
105,126.38x = 9,114,463,922.05 - Step 5: Solve for x
x = 9,114,463,922.05/105,126.38 - Step 6: Final answer
x = 86,700.07
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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.