Finding the Fourth Proportional to 102,460.23, 141,395.74 and 57,141.09
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Solution
The fourth proportional to 102,460.23, 141,395.74 and 57,141.09 is: 78,855.05
Step by Step Solution
- Step 1: Write the proportion equation
102,460.23 : 141,395.74 = 57,141.09 : x - Step 2: Convert to fraction form
102,460.23/141,395.74 = 57,141.09/x - Step 3: Cross multiply
102,460.23x = 141,395.74 × 57,141.09 - Step 4: Simplify right side
102,460.23x = 8,079,506,562.10 - Step 5: Solve for x
x = 8,079,506,562.10/102,460.23 - Step 6: Final answer
x = 78,855.05
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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.