Finding the Fourth Proportional to 187,826.42, 259,202.76 and 102,943.28
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Solution
The fourth proportional to 187,826.42, 259,202.76 and 102,943.28 is: 142,062.99
Step by Step Solution
- Step 1: Write the proportion equation
187,826.42 : 259,202.76 = 102,943.28 : x - Step 2: Convert to fraction form
187,826.42/259,202.76 = 102,943.28/x - Step 3: Cross multiply
187,826.42x = 259,202.76 × 102,943.28 - Step 4: Simplify right side
187,826.42x = 26,683,182,299.45 - Step 5: Solve for x
x = 26,683,182,299.45/187,826.42 - Step 6: Final answer
x = 142,062.99
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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.