Finding the Fourth Proportional to 189,027.18, 260,856.70 and 102,985.90
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Solution
The fourth proportional to 189,027.18, 260,856.70 and 102,985.90 is: 142,120.09
Step by Step Solution
- Step 1: Write the proportion equation
189,027.18 : 260,856.70 = 102,985.90 : x - Step 2: Convert to fraction form
189,027.18/260,856.70 = 102,985.90/x - Step 3: Cross multiply
189,027.18x = 260,856.70 × 102,985.90 - Step 4: Simplify right side
189,027.18x = 26,864,560,201.32 - Step 5: Solve for x
x = 26,864,560,201.32/189,027.18 - Step 6: Final answer
x = 142,120.09
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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.