Finding the Fourth Proportional to 157,704.80, 236,557.20 and 98,655.80
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Solution
The fourth proportional to 157,704.80, 236,557.20 and 98,655.80 is: 147,983.70
Step by Step Solution
- Step 1: Write the proportion equation
157,704.80 : 236,557.20 = 98,655.80 : x - Step 2: Convert to fraction form
157,704.80/236,557.20 = 98,655.80/x - Step 3: Cross multiply
157,704.80x = 236,557.20 × 98,655.80 - Step 4: Simplify right side
157,704.80x = 23,337,739,811.76 - Step 5: Solve for x
x = 23,337,739,811.76/157,704.80 - Step 6: Final answer
x = 147,983.70
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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.