Finding the Fourth Proportional to 130,018.68, 194,868.45 and 73,905.75
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Solution
The fourth proportional to 130,018.68, 194,868.45 and 73,905.75 is: 110,767.92
Step by Step Solution
- Step 1: Write the proportion equation
130,018.68 : 194,868.45 = 73,905.75 : x - Step 2: Convert to fraction form
130,018.68/194,868.45 = 73,905.75/x - Step 3: Cross multiply
130,018.68x = 194,868.45 × 73,905.75 - Step 4: Simplify right side
130,018.68x = 14,401,898,948.59 - Step 5: Solve for x
x = 14,401,898,948.59/130,018.68 - Step 6: Final answer
x = 110,767.92
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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.