Finding the Fourth Proportional to 135,671.10, 187,237.62 and 75,261.21
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Solution
The fourth proportional to 135,671.10, 187,237.62 and 75,261.21 is: 103,866.84
Step by Step Solution
- Step 1: Write the proportion equation
135,671.10 : 187,237.62 = 75,261.21 : x - Step 2: Convert to fraction form
135,671.10/187,237.62 = 75,261.21/x - Step 3: Cross multiply
135,671.10x = 187,237.62 × 75,261.21 - Step 4: Simplify right side
135,671.10x = 14,091,728,902.53 - Step 5: Solve for x
x = 14,091,728,902.53/135,671.10 - Step 6: Final answer
x = 103,866.84
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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.