Finding the Fourth Proportional to 189,869.04, 284,901.12 and 84,756.96
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Solution
The fourth proportional to 189,869.04, 284,901.12 and 84,756.96 is: 127,178.99
Step by Step Solution
- Step 1: Write the proportion equation
189,869.04 : 284,901.12 = 84,756.96 : x - Step 2: Convert to fraction form
189,869.04/284,901.12 = 84,756.96/x - Step 3: Cross multiply
189,869.04x = 284,901.12 × 84,756.96 - Step 4: Simplify right side
189,869.04x = 24,147,352,831.80 - Step 5: Solve for x
x = 24,147,352,831.80/189,869.04 - Step 6: Final answer
x = 127,178.99
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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.