Finding the Fourth Proportional to 106,479.20, 159,718.80 and 96,637.70
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Solution
The fourth proportional to 106,479.20, 159,718.80 and 96,637.70 is: 144,956.55
Step by Step Solution
- Step 1: Write the proportion equation
106,479.20 : 159,718.80 = 96,637.70 : x - Step 2: Convert to fraction form
106,479.20/159,718.80 = 96,637.70/x - Step 3: Cross multiply
106,479.20x = 159,718.80 × 96,637.70 - Step 4: Simplify right side
106,479.20x = 15,434,857,478.76 - Step 5: Solve for x
x = 15,434,857,478.76/106,479.20 - Step 6: Final answer
x = 144,956.55
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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.