Finding the Fourth Proportional to 181,621.80, 272,432.70 and 70,813.80
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Solution
The fourth proportional to 181,621.80, 272,432.70 and 70,813.80 is: 106,220.70
Step by Step Solution
- Step 1: Write the proportion equation
181,621.80 : 272,432.70 = 70,813.80 : x - Step 2: Convert to fraction form
181,621.80/272,432.70 = 70,813.80/x - Step 3: Cross multiply
181,621.80x = 272,432.70 × 70,813.80 - Step 4: Simplify right side
181,621.80x = 19,291,994,731.26 - Step 5: Solve for x
x = 19,291,994,731.26/181,621.80 - Step 6: Final answer
x = 106,220.70
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1.5x scale
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.