Finding the Fourth Proportional to 130,343.38, 179,901.99 and 79,373.02
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Solution
The fourth proportional to 130,343.38, 179,901.99 and 79,373.02 is: 109,551.89
Step by Step Solution
- Step 1: Write the proportion equation
130,343.38 : 179,901.99 = 79,373.02 : x - Step 2: Convert to fraction form
130,343.38/179,901.99 = 79,373.02/x - Step 3: Cross multiply
130,343.38x = 179,901.99 × 79,373.02 - Step 4: Simplify right side
130,343.38x = 14,279,364,250.31 - Step 5: Solve for x
x = 14,279,364,250.31/130,343.38 - Step 6: Final answer
x = 109,551.89
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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.