Finding the Fourth Proportional to 138,594.68, 191,260.70 and 74,932.48
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Solution
The fourth proportional to 138,594.68, 191,260.70 and 74,932.48 is: 103,406.84
Step by Step Solution
- Step 1: Write the proportion equation
138,594.68 : 191,260.70 = 74,932.48 : x - Step 2: Convert to fraction form
138,594.68/191,260.70 = 74,932.48/x - Step 3: Cross multiply
138,594.68x = 191,260.70 × 74,932.48 - Step 4: Simplify right side
138,594.68x = 14,331,638,577.54 - Step 5: Solve for x
x = 14,331,638,577.54/138,594.68 - Step 6: Final answer
x = 103,406.84
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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.