Finding the Fourth Proportional to 186,142.95, 279,214.47 and 130,092.53
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Solution
The fourth proportional to 186,142.95, 279,214.47 and 130,092.53 is: 195,138.82
Step by Step Solution
- Step 1: Write the proportion equation
186,142.95 : 279,214.47 = 130,092.53 : x - Step 2: Convert to fraction form
186,142.95/279,214.47 = 130,092.53/x - Step 3: Cross multiply
186,142.95x = 279,214.47 × 130,092.53 - Step 4: Simplify right side
186,142.95x = 36,323,715,418.84 - Step 5: Solve for x
x = 36,323,715,418.84/186,142.95 - Step 6: Final answer
x = 195,138.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.