Finding the Fourth Proportional to 102,541.18, 153,796.41 and 85,122.94
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Solution
The fourth proportional to 102,541.18, 153,796.41 and 85,122.94 is: 127,671.66
Step by Step Solution
- Step 1: Write the proportion equation
102,541.18 : 153,796.41 = 85,122.94 : x - Step 2: Convert to fraction form
102,541.18/153,796.41 = 85,122.94/x - Step 3: Cross multiply
102,541.18x = 153,796.41 × 85,122.94 - Step 4: Simplify right side
102,541.18x = 13,091,602,580.65 - Step 5: Solve for x
x = 13,091,602,580.65/102,541.18 - Step 6: Final answer
x = 127,671.66
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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.