Finding the Fourth Proportional to 134,890.14, 186,158.70 and 74,472.42
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Solution
The fourth proportional to 134,890.14, 186,158.70 and 74,472.42 is: 102,777.63
Step by Step Solution
- Step 1: Write the proportion equation
134,890.14 : 186,158.70 = 74,472.42 : x - Step 2: Convert to fraction form
134,890.14/186,158.70 = 74,472.42/x - Step 3: Cross multiply
134,890.14x = 186,158.70 × 74,472.42 - Step 4: Simplify right side
134,890.14x = 13,863,688,893.05 - Step 5: Solve for x
x = 13,863,688,893.05/134,890.14 - Step 6: Final answer
x = 102,777.63
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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.