Finding the Fourth Proportional to 130,951.28, 180,713.92 and 74,363.84
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Solution
The fourth proportional to 130,951.28, 180,713.92 and 74,363.84 is: 102,622.75
Step by Step Solution
- Step 1: Write the proportion equation
130,951.28 : 180,713.92 = 74,363.84 : x - Step 2: Convert to fraction form
130,951.28/180,713.92 = 74,363.84/x - Step 3: Cross multiply
130,951.28x = 180,713.92 × 74,363.84 - Step 4: Simplify right side
130,951.28x = 13,438,581,032.65 - Step 5: Solve for x
x = 13,438,581,032.65/130,951.28 - Step 6: Final answer
x = 102,622.75
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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.