Finding the Fourth Proportional to 102,586.20, 153,879.30 and 97,747.80
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Solution
The fourth proportional to 102,586.20, 153,879.30 and 97,747.80 is: 146,621.70
Step by Step Solution
- Step 1: Write the proportion equation
102,586.20 : 153,879.30 = 97,747.80 : x - Step 2: Convert to fraction form
102,586.20/153,879.30 = 97,747.80/x - Step 3: Cross multiply
102,586.20x = 153,879.30 × 97,747.80 - Step 4: Simplify right side
102,586.20x = 15,041,363,040.54 - Step 5: Solve for x
x = 15,041,363,040.54/102,586.20 - Step 6: Final answer
x = 146,621.70
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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.