Finding the Fourth Proportional to 143,320.08, 197,759.24 and 79,657.68
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Solution
The fourth proportional to 143,320.08, 197,759.24 and 79,657.68 is: 109,915.11
Step by Step Solution
- Step 1: Write the proportion equation
143,320.08 : 197,759.24 = 79,657.68 : x - Step 2: Convert to fraction form
143,320.08/197,759.24 = 79,657.68/x - Step 3: Cross multiply
143,320.08x = 197,759.24 × 79,657.68 - Step 4: Simplify right side
143,320.08x = 15,753,042,256.96 - Step 5: Solve for x
x = 15,753,042,256.96/143,320.08 - Step 6: Final answer
x = 109,915.11
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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.