Finding the Fourth Proportional to 189,032.13, 260,856.75 and 102,991.80
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Solution
The fourth proportional to 189,032.13, 260,856.75 and 102,991.80 is: 142,124.56
Step by Step Solution
- Step 1: Write the proportion equation
189,032.13 : 260,856.75 = 102,991.80 : x - Step 2: Convert to fraction form
189,032.13/260,856.75 = 102,991.80/x - Step 3: Cross multiply
189,032.13x = 260,856.75 × 102,991.80 - Step 4: Simplify right side
189,032.13x = 26,866,107,589.08 - Step 5: Solve for x
x = 26,866,107,589.08/189,032.13 - Step 6: Final answer
x = 142,124.56
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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.