Finding the Fourth Proportional to 102,295.79, 141,155.78 and 58,686.09
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Solution
The fourth proportional to 102,295.79, 141,155.78 and 58,686.09 is: 80,979.68
Step by Step Solution
- Step 1: Write the proportion equation
102,295.79 : 141,155.78 = 58,686.09 : x - Step 2: Convert to fraction form
102,295.79/141,155.78 = 58,686.09/x - Step 3: Cross multiply
102,295.79x = 141,155.78 × 58,686.09 - Step 4: Simplify right side
102,295.79x = 8,283,880,316.44 - Step 5: Solve for x
x = 8,283,880,316.44/102,295.79 - Step 6: Final answer
x = 80,979.68
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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.