Finding the Fourth Proportional to 102,168.24, 141,004.62 and 61,881
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Solution
The fourth proportional to 102,168.24, 141,004.62 and 61,881 is: 85,403.32
Step by Step Solution
- Step 1: Write the proportion equation
102,168.24 : 141,004.62 = 61,881 : x - Step 2: Convert to fraction form
102,168.24/141,004.62 = 61,881/x - Step 3: Cross multiply
102,168.24x = 141,004.62 × 61,881 - Step 4: Simplify right side
102,168.24x = 8,725,506,890.22 - Step 5: Solve for x
x = 8,725,506,890.22/102,168.24 - Step 6: Final answer
x = 85,403.32
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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.